/* ========================================
   ONEp1 Dashboard - Modern App Style
   ======================================== */

/* Root Variables - ONEev Brand Colors + Enhanced Contrast */
:root {
    /* Primary Colors - Enhanced contrast */
    --primary: #3FA0F3;        /* Brighter blue for better visibility */
    --primary-dark: #001A33;   /* Deeper dark blue for maximum contrast */
    --primary-light: #FFFFFF;  /* White - Backgrounds */
    --primary-hover: #1E88E5;  /* Darker blue for hover states */

    /* Secondary Colors */
    --secondary: #0061A3;      /* Directoire Blue - Accents */
    --secondary-green: #10B981; /* Emerald green for success states */
    --secondary-gray: #64748B; /* Darker gray for better readability */

    /* Accent Colors (subtle) */
    --accent-green: #10B981;   /* Success - emerald green */
    --accent-amber: #F59E0B;   /* Warning - warm amber */
    --accent-rose: #F43F5E;    /* Danger - vibrant rose */
    --accent-purple: #8B5CF6;  /* Info - soft purple */

    --success: #10B981;        /* Emerald green for success */
    --warning: #F59E0B;        /* Amber for warning */
    --danger: #F43F5E;         /* Rose for danger */

    --consumption-color: #3FA0F3;  /* Bright blue for consumption */
    --production-color: #F59E0B;   /* Warm amber for solar */
    --net-color: #8B5CF6;          /* Purple for net power */

    --bg-primary: #F8FAFC;         /* Slightly cooler background */
    --bg-secondary: #FFFFFF;       /* Pure white for cards */
    --bg-tertiary: #F1F5F9;        /* Cool gray for inputs */
    --bg-accent: #EFF6FF;          /* Light blue accent background */

    --text-primary: #0F172A;       /* Deep slate for maximum readability */
    --text-secondary: #475569;     /* Medium slate for secondary text */
    --text-tertiary: #94A3B8;      /* Light slate for tertiary text */

    --border-color: #CBD5E1;       /* Slate border for better definition */
    --border-accent: #93C5FD;      /* Blue accent border */
    --shadow-sm: 0 1px 2px 0 rgba(15, 23, 42, 0.08);
    --shadow-md: 0 4px 6px -1px rgba(15, 23, 42, 0.12);
    --shadow-lg: 0 10px 15px -3px rgba(15, 23, 42, 0.15);
    --shadow-xl: 0 20px 25px -5px rgba(15, 23, 42, 0.18);

    --header-height: 64px;
    --tab-nav-height: 56px;
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;

    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-full: 9999px;

    --transition-fast: 150ms ease-in-out;
    --transition-normal: 250ms ease-in-out;
    --transition-slow: 350ms ease-in-out;
}

/* Reset & Base */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Montserrat', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: var(--bg-primary);  /* Light blue background */
    color: var(--text-primary);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
    overflow-y: visible; /* CRITICAL: Must be visible for sticky positioning to work on children */
    position: relative;
    min-height: 100vh;
}

/* Auth Loading Overlay */
.auth-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--bg-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    animation: fadeIn 0.3s ease;
}

.auth-spinner {
    text-align: center;
    animation: slideUp 0.5s ease;
}

.spinner-logo {
    width: 96px;
    height: 96px;
    animation: pulse 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
    border-radius: var(--radius-lg);
}

.auth-spinner h2 {
    margin-top: var(--spacing-lg);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary);
}

.auth-spinner p {
    margin-top: var(--spacing-sm);
    color: var(--text-secondary);
    font-size: 0.875rem;
}

/* App Container */
.app-container {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    max-width: 100%;
    /* CRITICAL FIX: Removed overflow properties entirely!
       CSS QUIRK: You CANNOT combine overflow-x: hidden with overflow-y: visible
       Browsers automatically convert overflow-y to 'auto' which breaks sticky positioning
       Solution: Let body handle overflow-x: hidden instead */
}

/* ========================================
   HEADER
   ======================================== */
.app-header {
    position: sticky !important;
    top: 0 !important;
    z-index: 1000 !important;  /* Verhoogd voor zowel desktop als mobiel */
    background: rgba(255, 255, 255, 0.95);
    border-bottom: 1px solid var(--border-color);
    height: var(--header-height);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 var(--spacing-lg);
    backdrop-filter: blur(10px);
}

.header-left {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.btn-icon {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-md);
    border: none;
    background: transparent;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.btn-icon:hover {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

.btn-icon:active {
    transform: scale(0.95);
}

.header-title {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.header-logo {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-sm);
}

.header-title h1 {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
}

.header-right {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.connection-status {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--bg-tertiary);
    border-radius: var(--radius-full);
    font-size: 0.875rem;
}

.status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--secondary);
    animation: pulse 2s infinite;
}

.status-dot.connected {
    background: var(--accent-green);
    box-shadow: 0 0 8px rgba(16, 185, 129, 0.4);
}

.status-dot.offline {
    background: var(--accent-rose);
    box-shadow: 0 0 8px rgba(244, 63, 94, 0.4);
}

.status-text {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-secondary);
}

/* ========================================
   TAB NAVIGATION
   ======================================== */
.tab-nav {
    position: sticky !important;
    top: var(--header-height) !important;
    z-index: 999 !important;  /* Verhoogd voor zowel desktop als mobiel */
    background: rgba(255, 255, 255, 0.95);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    height: var(--tab-nav-height);
    backdrop-filter: blur(10px);
}

.tab-btn {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 4px;
    border: none;
    background: transparent;
    color: var(--text-secondary);
    font-size: 0.75rem;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-fast);
    position: relative;
    padding: var(--spacing-sm);
}

.tab-btn svg {
    stroke-width: 2;
    transition: all var(--transition-fast);
}

.tab-btn:hover {
    color: var(--primary);
    background: var(--bg-tertiary);
}

.tab-btn.active {
    color: var(--primary);
}

.tab-btn.active::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--primary);
    border-radius: 3px 3px 0 0;
}

.tab-btn.active svg {
    stroke-width: 2.5;
}

/* ========================================
   TAB CONTENT
   ======================================== */
.tab-content {
    flex: 1;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
}

.tab-pane {
    display: none;
    animation: fadeIn 0.3s ease;
}

.tab-pane.active {
    display: block;
}

.content-wrapper {
    padding: var(--spacing-lg);
    max-width: 1200px;
    margin: 0 auto;
}

/* ========================================
   SECTIONS
   ======================================== */
.section-header {
    margin-bottom: var(--spacing-lg);
}

.section-header h2 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
}

.section-subtitle {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

section {
    margin-bottom: var(--spacing-xl);
}

/* ========================================
   POWER CARDS (Tab 1)
   ======================================== */
.power-section {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
    margin-top: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

.power-card {
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-md);
    transition: all var(--transition-normal);
    border: 2px solid transparent;
    position: relative;
    overflow: hidden;
}

.power-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    transition: height var(--transition-normal);
}

.power-card.consumption::before {
    background: linear-gradient(90deg, #3FA0F3, #1E88E5);
}

.power-card.production::before {
    background: linear-gradient(90deg, #F59E0B, #F97316);
}

.power-card.net::before {
    background: linear-gradient(90deg, #8B5CF6, #A78BFA);
}

.power-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(63, 160, 243, 0.25);
    border-color: var(--border-accent);
}

.power-card:hover::before {
    height: 8px;
}

.card-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
}

.card-icon {
    font-size: 1.5rem;
    display: none;  /* Hide emoji icons per user request */
}

.card-header h3 {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 0;
}

.card-value {
    font-size: 2.5rem;
    font-weight: 700;
    line-height: 1;
    margin-bottom: var(--spacing-sm);
    margin-top: 0;
}

.power-card.consumption .card-value {
    color: var(--consumption-color);
}

.power-card.production .card-value {
    color: var(--production-color);
}

.power-card.net .card-value {
    color: var(--net-color);
}

.card-trend {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.card-subtitle {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

/* ========================================
   CHART SECTION
   ======================================== */
.chart-section {
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-color);
    margin-bottom: var(--spacing-xl);
}

.chart-section .section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-lg);
}

.chart-section .section-header h2 {
    margin: 0;
}

/* Centered chart title */
.chart-title-centered {
    text-align: center;
    margin-bottom: var(--spacing-md);
}

.chart-title-centered h2 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin: 0;
}

/* Time controls centered below title */
.time-controls {
    display: flex;
    gap: var(--spacing-xs);
    background: var(--bg-tertiary);
    padding: 4px;
    border-radius: var(--radius-md);
    justify-content: center;
    margin-bottom: var(--spacing-lg);
    width: fit-content;
    margin-left: auto;
    margin-right: auto;
}

.time-selector {
    display: flex;
    gap: var(--spacing-xs);
    background: var(--bg-tertiary);
    padding: 4px;
    border-radius: var(--radius-md);
}

.time-btn {
    padding: var(--spacing-sm) var(--spacing-md);
    border: none;
    background: transparent;
    color: var(--text-secondary);
    font-size: 0.875rem;
    font-weight: 500;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.time-btn:hover {
    color: var(--text-primary);
}

.time-btn.active {
    background: white;
    color: var(--primary);
    box-shadow: 0 2px 8px rgba(63, 160, 243, 0.2);
    font-weight: 600;
}

.chart-container {
    position: relative;
    height: 300px;
    margin-top: var(--spacing-lg);
}

.chart-container canvas {
    max-width: 100%;
    height: 100% !important;
}

/* ========================================
   PERIOD STATISTICS
   ======================================== */
.period-stats-section {
    margin-bottom: var(--spacing-xl);
}

.period-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
}

.period-subtitle {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-top: calc(-1 * var(--spacing-sm));
    margin-bottom: var(--spacing-md);
}

.period-stats-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 4px;
}

.period-stat-card {
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    padding: var(--spacing-md);
    border: 2px solid var(--border-color);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-normal);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 90px;
    position: relative;
    overflow: hidden;
}

.period-stat-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    transition: height var(--transition-normal);
}

.period-stat-card.consumption::before {
    background: linear-gradient(90deg, #2563eb, #3b82f6);
}

.period-stat-card.production::before {
    background: linear-gradient(90deg, #eab308, #fbbf24);
}

.period-stat-card.gas::before {
    background: linear-gradient(90deg, #10B981, #14B8A6);
}

.period-stat-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(63, 160, 243, 0.15);
    border-color: var(--border-accent);
}

.period-stat-card:hover::before {
    height: 6px;
}

.period-icon {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-xs);
}

.period-value {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--text-primary);
    text-align: center;
    line-height: 1.2;
}

.period-unit {
    font-size: 1rem;
    font-weight: 500;
    color: var(--text-secondary);
    margin-left: 4px;
}

/* Detailed Stats Grid (second screenshot style) */
.period-stats-section.detailed {
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-md);
}

.detailed-stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-lg);
}

.detailed-stat-card {
    background: var(--bg-primary);
    border-radius: var(--radius-md);
    padding: var(--spacing-lg);
    border: 1px solid var(--border-color);
    transition: all var(--transition-normal);
}

.detailed-stat-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
    border-color: var(--border-accent);
}

.detailed-stat-label {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-sm);
    font-weight: 500;
}

.detailed-stat-value {
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-primary);
}

/* ========================================
   DEVICE SELECTOR (Tab 2)
   ======================================== */
.device-selector-section {
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-sm);
    margin-bottom: var(--spacing-xl);
}

.device-select {
    width: 100%;
    padding: var(--spacing-md);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    font-size: 1rem;
    font-family: inherit;
    background: var(--bg-tertiary);
    color: var(--text-primary);
    cursor: pointer;
    transition: all var(--transition-fast);
    margin-bottom: var(--spacing-md);
}

.device-select:hover {
    border-color: var(--primary-light);
}

.device-select:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.device-status-info {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md);
    background: linear-gradient(135deg, var(--bg-accent), var(--bg-tertiary));
    border-radius: var(--radius-md);
    border: 1px solid var(--border-accent);
    font-size: 0.875rem;
}

/* ========================================
   PORT CARDS
   ======================================== */
.ports-section {
    margin-bottom: var(--spacing-xl);
}

.port-card {
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-md);
    border: 2px solid var(--border-color);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-normal);
}

.port-card:hover {
    border-color: var(--primary-light);
    box-shadow: var(--shadow-md);
}

.port-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-md);
    border-bottom: 1px solid var(--border-color);
}

.port-title {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.port-number {
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--text-primary);
}

.port-priority {
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* Toggle Switch */
.toggle-switch {
    position: relative;
    display: inline-block;
    width: 48px;
    height: 26px;
}

.toggle-switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.toggle-slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: var(--bg-tertiary);
    transition: var(--transition-fast);
    border-radius: var(--radius-full);
    border: 2px solid var(--border-color);
}

.toggle-slider:before {
    position: absolute;
    content: "";
    height: 18px;
    width: 18px;
    left: 2px;
    bottom: 2px;
    background-color: white;
    transition: var(--transition-fast);
    border-radius: 50%;
    box-shadow: var(--shadow-sm);
}

.toggle-switch input:checked + .toggle-slider {
    background: linear-gradient(135deg, var(--primary), var(--accent-purple));
    border-color: var(--primary);
    box-shadow: 0 2px 8px rgba(63, 160, 243, 0.3);
}

.toggle-switch input:checked + .toggle-slider:before {
    transform: translateX(22px);
}

/* Port Body */
.port-body {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.form-group label {
    font-size: 0.875rem;
    font-weight: 700;
    color: var(--primary-dark);
    text-transform: none;
    letter-spacing: 0;
}

.form-group input[type="text"],
.form-group input[type="email"],
.form-group input[type="tel"],
.form-group input[type="number"],
.form-group select {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    font-size: 1rem;
    font-family: inherit;
    font-weight: 500;
    background: var(--bg-tertiary);
    color: var(--text-primary);
    transition: all var(--transition-fast);
}

.form-group input:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--primary);
    background: white;
    box-shadow: 0 0 0 4px rgba(63, 160, 243, 0.2), 0 2px 8px rgba(15, 23, 42, 0.08);
}

.form-group input::placeholder {
    color: var(--text-tertiary);
    font-weight: 400;
}

.form-group select {
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg width='12' height='8' viewBox='0 0 12 8' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M1 1.5L6 6.5L11 1.5' stroke='%230061A3' stroke-width='2' stroke-linecap='round'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 16px center;
    padding-right: 48px;
}

.form-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-md);
}

.input-with-unit {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    position: relative;
}

.input-with-unit input {
    flex: 1;
    padding-right: 50px;
}

.input-with-unit .unit {
    position: absolute;
    right: var(--spacing-md);
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-secondary);
    pointer-events: none;
}

/* Checkbox */
.checkbox-label {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    cursor: pointer;
    user-select: none;
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    transition: background var(--transition-fast);
}

.checkbox-label:hover {
    background: var(--bg-tertiary);
}

.checkbox-label input[type="checkbox"] {
    position: absolute;
    opacity: 0;
}

.checkbox-custom {
    width: 20px;
    height: 20px;
    border: 2px solid var(--border-color);
    border-radius: 4px;
    background: var(--bg-tertiary);
    transition: all var(--transition-fast);
    position: relative;
}

.checkbox-label input[type="checkbox"]:checked + .checkbox-custom {
    background: linear-gradient(135deg, var(--primary), var(--accent-purple));
    border-color: var(--primary);
    box-shadow: 0 2px 6px rgba(63, 160, 243, 0.3);
}

.checkbox-label input[type="checkbox"]:checked + .checkbox-custom::after {
    content: '';
    position: absolute;
    left: 6px;
    top: 2px;
    width: 5px;
    height: 10px;
    border: solid white;
    border-width: 0 2px 2px 0;
    transform: rotate(45deg);
}

/* Port Status Display */
.port-status-display {
    display: grid;
    grid-template-columns: auto 1fr auto 1fr;
    gap: var(--spacing-sm) var(--spacing-md);
    padding: var(--spacing-md);
    background: linear-gradient(135deg, var(--bg-accent) 0%, var(--bg-tertiary) 100%);
    border-radius: var(--radius-md);
    border: 1px solid var(--border-accent);
    font-size: 0.875rem;
    margin-top: var(--spacing-md);
}

.port-chart-container {
    margin-top: var(--spacing-md);
    padding: var(--spacing-sm);
    background: var(--bg-secondary);
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
    height: 120px;
}

.port-chart-container canvas {
    width: 100% !important;
    height: 100% !important;
}

.status-label,
.power-label {
    font-weight: 600;
    color: var(--text-secondary);
}

.status-value,
.power-value {
    font-weight: 600;
    color: var(--text-primary);
}

/* ========================================
   BUTTONS
   ======================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-lg);
    border: none;
    border-radius: var(--radius-md);
    font-size: 1rem;
    font-weight: 600;
    font-family: inherit;
    cursor: pointer;
    transition: all var(--transition-fast);
    text-decoration: none;
}

.btn:active {
    transform: scale(0.98);
}

.btn-primary {
    background: linear-gradient(135deg, #3FA0F3 0%, #1E88E5 100%);
    color: white;
    border: none;
    box-shadow: 0 2px 8px rgba(63, 160, 243, 0.3);
}

.btn-primary:hover {
    background: linear-gradient(135deg, #1E88E5 0%, #1565C0 100%);
    box-shadow: 0 6px 16px rgba(63, 160, 243, 0.5);
    transform: translateY(-2px);
}

.btn-secondary {
    background: var(--bg-secondary);
    color: var(--text-primary);
    border: 2px solid var(--border-color);
    box-shadow: 0 1px 3px rgba(15, 23, 42, 0.08);
}

.btn-secondary:hover {
    background: var(--bg-tertiary);
    border-color: var(--border-accent);
    box-shadow: 0 4px 8px rgba(15, 23, 42, 0.12);
    transform: translateY(-1px);
}

.btn-outline {
    background: transparent;
    color: var(--primary);
    border: 2px solid var(--primary);
}

.btn-outline:hover {
    background: var(--primary);
    color: white;
}

.btn-danger {
    background: var(--danger);
    color: white;
}

.btn-danger:hover {
    background: #dc2626;
    box-shadow: var(--shadow-md);
}

.action-buttons {
    display: flex;
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.action-buttons .btn {
    flex: 1;
}

/* ========================================
   PROFILE & SETTINGS (Tab 3)
   ======================================== */
.profile-card {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-sm);
}

.profile-avatar {
    flex-shrink: 0;
}

.avatar-circle {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    background: linear-gradient(135deg, #3FA0F3, #8B5CF6);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    font-weight: 700;
    box-shadow: 0 8px 16px rgba(63, 160, 243, 0.3);
    border: 3px solid white;
}

.profile-info h3 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
}

.profile-info p {
    color: var(--text-secondary);
}

/* Settings List */
.settings-section {
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-sm);
    margin-bottom: var(--spacing-xl);
}

.settings-list {
    display: flex;
    flex-direction: column;
}

.setting-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-lg);
    border-bottom: 1px solid var(--border-color);
}

.setting-item:last-child {
    border-bottom: none;
}

.setting-info {
    flex: 1;
}

.setting-label {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
}

.setting-description {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

/* About List */
.about-section {
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-sm);
    margin-bottom: var(--spacing-xl);
}

.about-list {
    display: flex;
    flex-direction: column;
}

.about-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-lg);
    border-bottom: 1px solid var(--border-color);
}

.about-item:last-child {
    border-bottom: none;
}

.about-label {
    font-weight: 600;
    color: var(--text-secondary);
}

.about-value {
    color: var(--text-primary);
}

.about-link {
    color: var(--primary);
    text-decoration: none;
    font-weight: 500;
}

.about-link:hover {
    text-decoration: underline;
}

/* Actions Section */
.actions-section {
    margin-bottom: var(--spacing-xl);
}

/* ========================================
   ACCOUNT EDIT FORM
   ======================================== */
.account-edit-section {
    margin-bottom: var(--spacing-xl);
}

.account-form-card {
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-sm);
}

.form-section {
    margin-bottom: var(--spacing-xl);
    padding-bottom: var(--spacing-xl);
    border-bottom: 1px solid var(--border-color);
}

.form-section:last-of-type {
    border-bottom: none;
}

.form-section h3 {
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--primary-dark);
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-sm);
    border-bottom: 3px solid transparent;
    background: linear-gradient(90deg, var(--primary), var(--accent-purple));
    background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    display: inline-block;
}

.form-hint {
    display: block;
    margin-top: var(--spacing-xs);
    font-size: 0.75rem;
    color: var(--secondary);
    font-style: italic;
    font-weight: 500;
}

.form-group input[readonly] {
    background: #F5F5F5;
    cursor: not-allowed;
    opacity: 0.8;
    border-color: #E0E0E0;
    color: #666;
}

.form-actions {
    display: flex;
    justify-content: flex-end;
    gap: var(--spacing-md);
    margin-top: var(--spacing-xl);
    padding-top: var(--spacing-xl);
    border-top: 1px solid var(--border-color);
}

@media (max-width: 768px) {
    .form-actions {
        flex-direction: column;
    }

    .form-actions .btn {
        width: 100%;
    }
}

/* ========================================
   ANIMATIONS
   ======================================== */
@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.5;
    }
}

/* ========================================
   DARK MODE
   ======================================== */
body.dark-mode {
    /* Dark mode color variables */
    --bg-primary: #0F172A;         /* Deep slate background */
    --bg-secondary: #1E293B;       /* Card background */
    --bg-tertiary: #334155;        /* Input/hover background */
    --bg-accent: #1E3A5F;          /* Dark blue accent */

    --text-primary: #F8FAFC;       /* Very light text - WCAG AAA contrast */
    --text-secondary: #E2E8F0;     /* Lighter secondary - better readability */
    --text-tertiary: #94A3B8;      /* Lighter tertiary - improved contrast */

    --border-color: #334155;       /* Dark borders */
    --border-accent: #3B82F6;      /* Blue accent border */

    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.5);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.6);

    background-color: var(--bg-primary);
    color: var(--text-primary);
}

/* Dark mode - Header */
body.dark-mode .app-header {
    background: #0F172A;  /* Same as body background - very dark */
    border-bottom-color: var(--border-color);
}

/* Dark mode - Navigation */
body.dark-mode .tab-nav {
    background: #0F172A !important;  /* Same as body background - very dark */
    border-bottom-color: var(--border-color);
}

/* Dark mode - User info header (injected by JS) */
body.dark-mode .user-info-header {
    background: #0F172A !important;  /* Dark background */
    color: var(--text-primary);
}

body.dark-mode .tab-btn {
    color: var(--text-secondary);
}

body.dark-mode .tab-btn.active {
    color: var(--primary);
    border-bottom-color: var(--primary);
}

body.dark-mode .tab-btn:hover {
    background: var(--bg-tertiary);
}

/* Dark mode - Cards */
body.dark-mode .power-card,
body.dark-mode .chart-section,
body.dark-mode .period-stats-section,
body.dark-mode .settings-card {
    background: var(--bg-secondary);
    border-color: var(--border-color);
}

body.dark-mode .power-card:hover {
    border-color: var(--border-accent);
}

/* Dark mode - Period stat cards */
body.dark-mode .period-stat-card {
    background: var(--bg-tertiary);
    border-color: var(--border-color);
}

body.dark-mode .period-stat-card:hover {
    background: #3B4A5C;
    transform: translateY(-2px);
}

/* Dark mode - Inputs */
body.dark-mode input,
body.dark-mode select,
body.dark-mode textarea {
    background: var(--bg-tertiary);
    border-color: var(--border-color);
    color: var(--text-primary);
}

body.dark-mode input:focus,
body.dark-mode select:focus,
body.dark-mode textarea:focus {
    background: var(--bg-secondary);
    border-color: var(--primary);
}

/* Dark mode - Buttons */
body.dark-mode .btn-secondary {
    background: var(--bg-tertiary);
    color: var(--text-primary);
    border-color: var(--border-color);
}

body.dark-mode .btn-secondary:hover {
    background: var(--bg-accent);
    border-color: var(--border-accent);
}

body.dark-mode .time-btn {
    background: var(--bg-tertiary);
    color: var(--text-secondary);
    border-color: var(--border-color);
}

body.dark-mode .time-btn.active {
    background: var(--primary);
    color: white;
    border-color: var(--primary);
}

body.dark-mode .time-btn:hover {
    background: var(--bg-accent);
    color: var(--text-primary);
}

/* Dark mode - Chart */
body.dark-mode .chart-container {
    background: var(--bg-secondary);
}

/* Dark mode - Status messages */
body.dark-mode .status-message {
    background: var(--bg-tertiary);
    border-color: var(--border-color);
}

body.dark-mode .status-message.error {
    background: rgba(244, 63, 94, 0.1);
    border-color: var(--danger);
}

body.dark-mode .status-message.success {
    background: rgba(16, 185, 129, 0.1);
    border-color: var(--success);
}

body.dark-mode .status-message.info {
    background: rgba(59, 130, 246, 0.1);
    border-color: var(--primary);
}

/* Dark mode - Device status */
body.dark-mode .device-status.active {
    background: rgba(16, 185, 129, 0.15);
    border-color: var(--success);
}

body.dark-mode .device-status.inactive {
    background: rgba(100, 116, 139, 0.15);
    border-color: var(--text-tertiary);
}

/* Dark mode - Scrollbar (webkit browsers) */
body.dark-mode ::-webkit-scrollbar {
    width: 8px;
    background: var(--bg-primary);
}

body.dark-mode ::-webkit-scrollbar-thumb {
    background: var(--bg-tertiary);
    border-radius: 4px;
}

body.dark-mode ::-webkit-scrollbar-thumb:hover {
    background: var(--border-color);
}

/* Dark mode - Form labels and text */
body.dark-mode .setting-label,
body.dark-mode .form-label,
body.dark-mode label {
    color: var(--text-primary);
}

body.dark-mode .setting-description,
body.dark-mode .form-hint {
    color: var(--text-secondary);
}

/* Dark mode - Tab navigation icons and text */
body.dark-mode .tab-btn svg,
body.dark-mode .tab-btn path {
    stroke: var(--text-secondary);
    fill: none;
}

body.dark-mode .tab-btn.active svg,
body.dark-mode .tab-btn.active path {
    stroke: var(--primary);
}

body.dark-mode .tab-btn span {
    color: var(--text-secondary);
}

body.dark-mode .tab-btn.active span {
    color: var(--primary);
}

/* ========================================
   RESPONSIVE
   ======================================== */
@media (max-width: 768px) {
    .content-wrapper {
        padding: var(--spacing-md);
    }

    .power-section {
        grid-template-columns: 1fr;
    }

    .period-stats-grid {
        grid-template-columns: 1fr;
    }

    .detailed-stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .form-row {
        grid-template-columns: 1fr;
    }

    .action-buttons {
        flex-direction: column;
    }

    .app-header {
        padding: max(6px, env(safe-area-inset-top)) var(--spacing-md) 6px var(--spacing-md);  /* Safe-area voor statusbalk */
        height: auto;  /* Laat content de hoogte bepalen */
        min-height: unset;
        max-height: unset;
    }

    /* Body aanpassing voor fullscreen mode */
    body {
        padding-top: env(safe-area-inset-top);
    }

    .header-title h1 {
        font-size: 1rem;  /* Kleinere tekst */
        line-height: 1;  /* Minimale line-height om ruimte te besparen */
    }

    .btn-icon {
        width: 28px;  /* Nog kleinere icon button */
        height: 28px;
    }

    .header-logo {
        width: 24px;  /* Nog kleiner logo */
        height: 24px;
    }

    /* Zorg dat de tab-nav op de juiste positie blijft - dynamisch berekend */
    .tab-nav {
        top: var(--header-height) !important;
    }

    /* Kleinere uitloggen button op mobiel */
    #btnLogout {
        font-size: 0.7rem !important;
        padding: 4px 8px !important;
        height: auto;
        line-height: 1;
    }

    .profile-card {
        flex-direction: column;
        text-align: center;
    }

    .chart-container {
        height: 250px;
    }
}

@media (max-width: 480px) {
    .tab-btn span {
        font-size: 0.7rem;
    }

    .detailed-stats-grid {
        grid-template-columns: 1fr;
    }

    .card-value {
        font-size: 2rem;
    }

    .port-status-display {
        grid-template-columns: 1fr;
        gap: var(--spacing-xs);
    }
}

/* ========================================
   PRINT STYLES
   ======================================== */
@media print {
    .app-header,
    .tab-nav,
    .action-buttons,
    .btn {
        display: none !important;
    }

    .tab-pane {
        display: block !important;
    }
}

/* ========================================
   PAIRED DEVICES LIST
   ======================================== */
.paired-devices-section {
    margin-bottom: var(--spacing-xl);
}

.paired-devices-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.device-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-lg);
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    box-shadow: var(--shadow-sm);
    transition: all 0.2s ease;
}

.device-item:hover {
    box-shadow: var(--shadow-md);
    border-color: var(--primary);
}

.device-info {
    flex: 1;
}

.device-name {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
}

.device-details {
    font-size: 14px;
    color: var(--text-secondary);
    margin-top: var(--spacing-xs);
}

.device-details strong {
    color: var(--text-primary);
    font-weight: 600;
}

.device-status {
    padding: 6px 12px;
    border-radius: 6px;
    font-size: 13px;
    font-weight: 500;
    margin-right: var(--spacing-md);
}

.status-connected {
    background: #D1FAE5;
    color: #047857;
}

.status-offline {
    background: #FEE2E2;
    color: #991B1B;
}

.no-devices {
    text-align: center;
    padding: var(--spacing-xl);
    color: var(--text-secondary);
    font-size: 15px;
}

.btn-small {
    padding: 6px 12px;
    font-size: 13px;
}

/* ========================================
   ENHANCED MOBILE OPTIMIZATIONS
   ======================================== */

/* Improved mobile layout for phones */
@media (max-width: 640px) {
    /* Reduce overall padding on mobile */
    .content-wrapper {
        padding: 8px 15px;
    }

    /* IMPROVED: Ultra-minimal header for mobile - only logo and logout */
    .app-header {
        height: 48px;
        padding: 0 8px;
        gap: 8px;
        position: sticky !important;
        top: 0 !important;
        z-index: 1000 !important;
        justify-content: space-between;
    }

    .header-title {
        gap: 6px;
    }

    .header-logo {
        width: 24px;
        height: 24px;
    }

    .header-title h1 {
        font-size: 0.9rem;
        font-weight: 600;
    }

    /* Hide connection status on mobile */
    .connection-status {
        display: none !important;
    }

    .status-text {
        display: none !important;
    }

    .status-dot {
        display: none !important;
    }

    /* Hide ALL user info on mobile - hide user-name div */
    .header-right {
        display: flex !important;
        gap: 0 !important;
        align-items: center !important;
    }

    /* Target the user-name div added by auth-check.js (mobile only) */
    .user-info-header .user-name,
    .header-right .user-name {
        display: none !important;
        visibility: hidden !important;
    }

    /* Hide entire user-info-header on mobile */
    .user-info-header {
        margin-left: 0 !important;
        padding: 0 !important;
        background: transparent !important;
        box-shadow: none !important;
        min-width: auto !important;
    }

    .profile-card {
        display: none !important;
    }

    /* Only show logout button - make it prominent */
    .user-info-header .logout-btn,
    .logout-btn,
    #btnLogout {
        display: block !important;
        font-size: 0.7rem !important;
        padding: 5px 12px !important;
        flex-shrink: 0 !important;
        margin: 0 !important;
        white-space: nowrap !important;
    }
    
    /* Tab navigation improvements */
    .tab-nav {
        height: 50px;
        padding: 0;
        margin-bottom: 0;
        position: sticky !important;
        top: 48px !important;  /* Onder de header (48px hoog) */
        z-index: 999 !important;
    }

    .tab-btn {
        padding: 6px 8px;
        gap: 2px;
    }

    .tab-btn svg {
        width: 18px;
        height: 18px;
    }

    .tab-btn span {
        font-size: 0.65rem;
    }

    /* Add spacing for content below tabs */
    .tab-content {
        padding-top: 8px;
    }

    /* Power cards - side by side on mobile */
    .power-section {
        grid-template-columns: repeat(2, 1fr);
        gap: 8px;
        margin-top: 12px;
        margin-bottom: 12px;
    }

    .power-card {
        padding: 10px;
        margin-bottom: 0;
        display: flex;
        flex-direction: column;
        align-items: center;
        text-align: center;
    }

    .card-header {
        width: 100%;
        text-align: center;
        display: flex;
        flex-direction: column;
        align-items: center;
        margin-bottom: 4px;
    }

    .card-header h3 {
        font-size: 0.7rem;
        margin-bottom: 0;
        text-align: center;
    }

    .card-icon {
        font-size: 1.2rem;
        text-align: center;
    }

    .card-value {
        font-size: 1.3rem;
        margin: 2px 0;
        text-align: center;
        width: 100%;
    }

    .card-change {
        font-size: 0.65rem;
        text-align: center;
        width: 100%;
    }
    
    /* Chart title - mobile */
    .chart-title-centered h2 {
        font-size: 1rem;
        font-weight: 600;
        margin-bottom: 8px;
    }

    /* Chart improvements */
    .chart-section {
        margin-bottom: 16px;  /* Ruimte tussen grafiek en Vandaag sectie */
        padding: 8px 8px 8px 8px;  /* Ook bottom padding voor ruimte */
    }

    .chart-container {
        height: 180px;
        margin: 0;
        padding: 0;
    }

    /* Time period buttons - smaller and centered */
    .time-controls {
        margin-bottom: 12px;
        padding: 3px;
    }

    .time-controls button {
        padding: 6px 10px;
        font-size: 0.75rem;
        min-width: 40px;
    }
    
    /* IMPROVED: Vertical stacked period stats sections (full width) */
    .period-stats-section {
        display: block;
        width: 100%;
        padding: 6px 0;
        margin-bottom: 8px;
        border-radius: 10px;
        box-sizing: border-box;
    }

    .period-title {
        font-size: 0.7rem;
        font-weight: 600;
        margin-bottom: 2px;
        padding: 0 10px;
    }

    .period-subtitle {
        font-size: 0.55rem;
        margin-bottom: 3px;
        white-space: nowrap;
        overflow: hidden;
        text-overflow: ellipsis;
        padding: 0 10px;
    }

    .period-stats-grid {
        gap: 2px;
        display: flex;
        flex-direction: row;
        justify-content: flex-start;
        width: 100%;
    }

    .period-stat-item {
        padding: 0;
        flex: 1 1 0;
        text-align: center;
        min-width: 0;
    }

    .period-stat-card {
        padding: 4px 2px;
        border-radius: 6px;
        margin: 0;
        flex: 1 1 0;
        min-width: 0;
    }

    .period-icon {
        font-size: 0.85rem;
        margin-bottom: 1px;
    }

    .period-value {
        font-size: 0.85rem;
        font-weight: 700;
        line-height: 1.2;
    }

    .period-unit {
        font-size: 0.55rem;
        margin-left: 1px;
    }

    .period-label {
        font-size: 0.55rem;
        margin-top: 1px;
    }
    
    /* IMPROVED: Compact section headers */
    .section-header {
        margin-bottom: 8px;
    }

    .section-header h2 {
        font-size: 0.95rem;
        font-weight: 600;
        margin-bottom: 2px;
    }

    .section-subtitle {
        font-size: 0.65rem;
    }
    
    /* Forms */
    .form-group label {
        font-size: 0.8rem;
    }
    
    input, select, textarea {
        font-size: 14px;
        padding: 10px 12px;
    }
    
    .btn {
        padding: 10px 16px;
        font-size: 0.85rem;
    }
    
    /* Port configuration cards */
    .port-card {
        padding: var(--spacing-md);
    }
    
    .port-header h4 {
        font-size: 0.85rem;
    }
    
    .port-priority {
        font-size: 0.7rem;
    }
    
    .port-toggle {
        transform: scale(0.9);
    }
    
    .port-config-row {
        gap: var(--spacing-sm);
    }
    
    .port-config-group label {
        font-size: 0.75rem;
    }
    
    /* Device items */
    .device-item {
        padding: var(--spacing-md);
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-sm);
    }
    
    .device-name {
        font-size: 1rem;
    }
    
    .device-details {
        font-size: 0.75rem;
    }
    
    .device-actions {
        width: 100%;
        display: flex;
        justify-content: flex-end;
    }
    
    /* Profile section */
    .profile-header {
        flex-direction: column;
        text-align: center;
        gap: var(--spacing-sm);
    }
}

/* Extra small phones */
@media (max-width: 360px) {
    .card-value {
        font-size: 1.5rem;
    }
    
    .period-value {
        font-size: 1.1rem;
    }
    
    .tab-btn span {
        font-size: 0.6rem;
    }
    
    .time-controls button {
        padding: 4px 8px;
        font-size: 0.7rem;
        min-width: 35px;
    }
}

/* Landscape mode on phones */
@media (max-height: 500px) and (orientation: landscape) {
    .chart-container {
        height: 180px;
    }

    .power-card {
        padding: var(--spacing-sm);
    }

    .card-value {
        font-size: 1.5rem;
    }
}

/* ========================================
   PWA FULLSCREEN - SAFE AREAS (iPhone notch/statusbar)
   ======================================== */

/* Safe area padding voor iOS devices met notch */
@supports (padding-top: env(safe-area-inset-top)) {
    body {
        padding-top: env(safe-area-inset-top);
        padding-bottom: env(safe-area-inset-bottom);
        padding-left: env(safe-area-inset-left);
        padding-right: env(safe-area-inset-right);
    }

    .app-header {
        /* Compensate for safe area - header blijft op juiste plek */
        padding-top: max(8px, env(safe-area-inset-top));
        padding-left: max(8px, env(safe-area-inset-left));
        padding-right: max(8px, env(safe-area-inset-right));
    }

    .tab-nav {
        /* Tab navigation ook met safe area padding */
        padding-left: env(safe-area-inset-left);
        padding-right: env(safe-area-inset-right);
    }
}

/* iOS standalone (PWA geïnstalleerd) - verberg browser UI volledig */
@media all and (display-mode: standalone) {
    /* Alleen dark background in standalone mode wanneer dark-mode actief is */
    body.dark-mode {
        background-color: #0F172A;
    }

    .app-header {
        /* Zorg dat header altijd zichtbaar blijft */
        position: sticky !important;
        top: 0;
        z-index: 1000;
    }
}

/* Android Chrome standalone mode */
@media all and (display-mode: fullscreen) {
    body.dark-mode {
        background-color: #0F172A;
    }

    .app-header {
        position: sticky !important;
        top: 0;
        z-index: 1000;
    }
}