/* ============================================
   EV Station ROI Calculator — Ampera Group
   Unified Design v5 — Matches Main Site
   ============================================ */

@import url('https://fonts.googleapis.com/css2?family=Unbounded:wght@200;300;400;500;600;700;800;900&family=Manrope:wght@300;400;500;600;700;800&display=swap');

:root {
    /* Brand Colors (from main site) */
    --ampera-red: #E31E24;
    --ampera-red-dark: #B91820;
    --ampera-red-light: #FF6B6B;

    /* Neutrals */
    --bg-primary: #FFFFFF;
    --bg-secondary: #F8F9FA;
    --bg-tertiary: #F0F2F5;
    --text-primary: #1A1A2E;
    --text-secondary: #6B7280;
    --text-muted: #9CA3AF;
    --border: rgba(0, 0, 0, 0.06);
    --border-focus: rgba(227, 30, 36, 0.4);

    /* Aliases for backward compatibility */
    --accent: #E31E24;
    --accent-light: #FF6B6B;
    --accent-dark: #B91820;
    --accent-glow: rgba(227, 30, 36, 0.06);
    --bg-card: var(--glass-bg);
    --bg-card-hover: rgba(245, 245, 250, 0.95);
    --bg-input: rgba(0, 0, 0, 0.03);
    --bg-input-focus: rgba(0, 0, 0, 0.05);

    /* KPI / Chart colors */
    --green: #2A9D8F;
    --green-glow: rgba(42, 157, 143, 0.08);
    --chart-rose: #E76F51;
    --chart-rose-glow: rgba(231, 111, 81, 0.08);
    --blue: #3B82F6;
    --blue-glow: rgba(59, 130, 246, 0.08);
    --yellow: #F59E0B;
    --purple: #8B5CF6;

    /* Glassmorphism (from main site) */
    --glass-bg: rgba(255, 255, 255, 0.72);
    --glass-border: rgba(255, 255, 255, 0.5);
    --glass-shadow: 0 8px 32px rgba(0, 0, 0, 0.06);
    --glass-blur: 20px;

    /* Gradients */
    --gradient-red: linear-gradient(135deg, #E31E24, #FF6B6B);

    /* Typography (from main site) */
    --font-display: 'Unbounded', sans-serif;
    --font-body: 'Manrope', sans-serif;

    /* Spacing */
    --container-width: 1280px;
    --container-padding: clamp(1rem, 4vw, 2rem);

    /* Transitions (from main site) */
    --ease-out-expo: cubic-bezier(0.16, 1, 0.3, 1);
    --transition-fast: 0.2s var(--ease-out-expo);
    --transition-medium: 0.4s var(--ease-out-expo);
    --transition: 0.3s var(--ease-out-expo);

    /* Radius (from main site) */
    --radius-sm: 8px;
    --radius: 16px;
    --radius-lg: 24px;
    --radius-xl: 32px;

    /* Other */
    --shadow: var(--glass-shadow);
    --backdrop: blur(var(--glass-blur));

    /* Chart */
    --chart-text: rgba(0, 0, 0, 0.45);
    --chart-grid: rgba(0, 0, 0, 0.05);
    --chart-grid-label: rgba(0, 0, 0, 0.4);
    --chart-zero: rgba(0, 0, 0, 0.1);
    --chart-bg: #ffffff;
    --table-hover-bg: rgba(227, 30, 36, 0.04);
    --table-col-hover-bg: rgba(227, 30, 36, 0.06);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-body);
    background: var(--bg-secondary);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
    overflow-x: hidden;
}

h1,
h2,
h3 {
    font-family: var(--font-display);
    font-weight: 700;
    line-height: 1.15;
    letter-spacing: -0.02em;
}

.hidden {
    display: none !important;
}

/* ============ Energy Slider (legacy, kept but unused) ============ */
.energy-slider-row {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.energy-num-input {
    width: 100px;
    padding: 0.5rem 0.7rem;
    background: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-family: var(--font-body);
    font-size: 0.95rem;
    font-weight: 600;
    text-align: center;
    outline: none;
    transition: var(--transition);
}

.energy-num-input:focus {
    border-color: var(--border-focus);
    background: var(--bg-input-focus);
    box-shadow: 0 0 0 3px rgba(227, 30, 36, 0.08);
}

.energy-unit {
    font-size: 0.8rem;
    color: var(--text-muted);
    white-space: nowrap;
    font-weight: 500;
}

#coeffGroup {
    transition: opacity 0.3s ease, max-height 0.3s ease;
    overflow: hidden;
}

#coeffGroup.hidden {
    display: none !important;
}

/* ============ Header ============ */
.header {
    position: sticky;
    top: 0;
    z-index: 100;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.75rem 2rem;
    background: var(--glass-bg);
    backdrop-filter: blur(var(--glass-blur));
    -webkit-backdrop-filter: blur(var(--glass-blur));
    border-bottom: 1px solid var(--glass-border);
    box-shadow: var(--glass-shadow);
    transition: all var(--transition-medium);
}

.header-left {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.header-logo-img {
    height: 36px;
    width: auto;
    object-fit: contain;
}

.header-title h1 {
    font-size: 1rem;
    font-weight: 600;
    letter-spacing: -0.01em;
}

.header-subtitle {
    font-size: 0.7rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.15em;
    font-family: var(--font-display);
    font-weight: 500;
}

.header-right {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

/* Theme Toggle (hidden in unified design) */
.theme-toggle {
    display: none;
}

/* Currency Selector (dropdown in header) */
.currency-selector {
    position: relative;
}

.currency-selector-btn {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    background: rgba(227, 30, 36, 0.06);
    border: 1px solid rgba(227, 30, 36, 0.15);
    border-radius: 100px;
    padding: 0.4rem 0.9rem;
    font-family: var(--font-display);
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--ampera-red);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.currency-selector-btn:hover {
    background: rgba(227, 30, 36, 0.12);
    border-color: rgba(227, 30, 36, 0.3);
    transform: translateY(-1px);
}

.currency-selector-arrow {
    width: 14px;
    height: 14px;
    transition: transform 0.2s;
}

.currency-selector.open .currency-selector-arrow {
    transform: rotate(180deg);
}

.currency-dropdown {
    position: absolute;
    top: calc(100% + 6px);
    right: 0;
    background: var(--glass-bg);
    backdrop-filter: blur(var(--glass-blur));
    -webkit-backdrop-filter: blur(var(--glass-blur));
    border: 1px solid var(--glass-border);
    border-radius: var(--radius);
    box-shadow: 0 16px 48px rgba(0, 0, 0, 0.1);
    min-width: 220px;
    overflow: hidden;
    z-index: 200;
    opacity: 0;
    transform: translateY(-8px);
    transition: opacity 0.2s, transform 0.2s;
    pointer-events: none;
}

.currency-dropdown.show {
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
}

.currency-dropdown-item {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    width: 100%;
    padding: 0.75rem 1rem;
    border: none;
    background: transparent;
    color: var(--text-primary);
    cursor: pointer;
    font-size: 0.9rem;
    font-family: var(--font-body);
    transition: all var(--transition-fast);
    text-align: left;
}

.currency-dropdown-item:hover {
    background: rgba(227, 30, 36, 0.06);
}

.currency-dropdown-item.active {
    background: rgba(227, 30, 36, 0.06);
    color: var(--ampera-red);
}

.cdi-symbol {
    font-weight: 700;
    font-size: 1rem;
    width: 28px;
    text-align: left;
    font-family: var(--font-display);
    color: var(--ampera-red);
    flex-shrink: 0;
}

.cdi-label {
    font-weight: 600;
}

.cdi-desc {
    color: var(--text-muted);
    font-size: 0.78rem;
}

/* ============ Main ============ */
.main {
    position: relative;
    z-index: 1;
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 2rem var(--container-padding);
}

/* ============ Input Grid ============ */
.inputs-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
    margin-bottom: 3rem;
}

/* ============ Card (Glassmorphism) ============ */
.card {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    backdrop-filter: blur(var(--glass-blur));
    -webkit-backdrop-filter: blur(var(--glass-blur));
    box-shadow: var(--glass-shadow);
    transition: transform var(--transition-medium), box-shadow var(--transition-medium);
}

.card:hover {
    transform: translateY(-4px);
    box-shadow: 0 16px 48px rgba(0, 0, 0, 0.1);
}

.card-header {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1.25rem 1.5rem 0.75rem;
}

.card-icon {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius);
    background: rgba(227, 30, 36, 0.06);
    color: var(--ampera-red);
    flex-shrink: 0;
}

.card-icon svg {
    width: 20px;
    height: 20px;
}

.card-header h2 {
    font-size: 1rem;
    font-weight: 600;
    letter-spacing: -0.01em;
}

.card-body {
    padding: 0.75rem 1.5rem 1.5rem;
}

/* ============ Form ============ */
.form-group {
    margin-bottom: 1.4rem;
}

.form-group:last-child {
    margin-bottom: 0;
}

.form-group label {
    display: flex;
    align-items: center;
    gap: 0.3rem;
    font-size: 0.82rem;
    color: var(--text-secondary);
    margin-bottom: 0.35rem;
    letter-spacing: 0;
    font-weight: 500;
    flex-wrap: wrap;
}

/* ============ Field Tooltips ============ */
.field-tip {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: rgba(107, 114, 128, 0.1);
    color: var(--text-muted);
    font-size: 10px;
    font-weight: 700;
    font-style: normal;
    cursor: help;
    position: relative;
    flex-shrink: 0;
    transition: all var(--transition-fast);
    line-height: 1;
    font-family: var(--font-body);
    user-select: none;
}

.field-tip:hover {
    background: rgba(227, 30, 36, 0.1);
    color: var(--ampera-red);
}

/* Tooltip popup (JS-driven, appended to body) */
#tooltip {
    position: fixed;
    z-index: 9999;
    background: var(--text-primary);
    color: #fff;
    font-size: 0.75rem;
    font-weight: 400;
    font-family: var(--font-body);
    line-height: 1.45;
    padding: 0.6rem 0.8rem;
    border-radius: var(--radius-sm);
    max-width: 260px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.25);
    pointer-events: none;
    opacity: 0;
    transition: opacity 0.15s;
}

#tooltip.visible {
    opacity: 1;
}

.form-group input,
.form-group select {
    width: 100%;
    padding: 0.6rem 0.9rem;
    background: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-family: var(--font-body);
    font-size: 0.95rem;
    font-weight: 600;
    transition: all var(--transition-fast);
    outline: none;
}

.form-group input:focus,
.form-group select:focus {
    border-color: var(--border-focus);
    background: var(--bg-input-focus);
    box-shadow: 0 0 0 3px rgba(227, 30, 36, 0.08);
}

.form-row {
    display: flex;
    gap: 0.75rem;
}

.form-group.half {
    flex: 1;
}

.hint {
    display: block;
    font-size: 0.78rem;
    color: var(--text-muted);
    margin-top: 0.3rem;
}

.hint strong {
    color: var(--ampera-red);
    font-weight: 700;
}

/* Utilization Mode Toggle */
.util-mode-toggle {
    display: flex;
    flex-wrap: wrap;
    border: 1px solid var(--border);
    border-radius: 100px;
    margin-bottom: 0.6rem;
    overflow: hidden;
}

.util-mode-btn {
    padding: 0.45rem 0.7rem;
    border: none;
    background: transparent;
    color: var(--text-secondary);
    cursor: pointer;
    font-size: 0.75rem;
    font-family: var(--font-display);
    font-weight: 500;
    transition: all var(--transition-fast);
    white-space: nowrap;
    flex: 1 1 auto;
    text-align: center;
    min-width: 0;
}

.util-mode-btn:hover {
    color: var(--ampera-red);
    background: rgba(227, 30, 36, 0.04);
}

.util-mode-btn.active {
    background: var(--gradient-red);
    color: #fff;
}

/* Power Coefficient */
.power-coeff-row {
    display: flex;
    gap: 0.5rem;
    align-items: center;
}

.power-coeff-row input {
    flex: 1;
}

.coeff-presets {
    display: flex;
    gap: 0.3rem;
}

.preset-btn {
    min-width: 36px;
    height: 36px;
    padding: 0 0.4rem;
    border-radius: 100px;
    border: 1px solid var(--border);
    background: transparent;
    color: var(--text-secondary);
    cursor: pointer;
    font-size: 0.75rem;
    font-family: var(--font-display);
    font-weight: 700;
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
}

.preset-btn:hover,
.preset-btn.active {
    border-color: var(--ampera-red);
    color: var(--ampera-red);
    background: rgba(227, 30, 36, 0.06);
}

.preset-auto {
    font-size: 0.75rem;
    width: auto;
    padding: 0 0.6rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-family: var(--font-display);
}

.preset-auto:hover,
.preset-auto.active {
    border-color: var(--green);
    color: var(--green);
    background: var(--green-glow);
}

/* Connection Cost Toggle */
.connection-cost-row {
    display: flex;
    gap: 0.5rem;
    align-items: center;
}

.connection-cost-row input {
    flex: 1;
}

.toggle-switch {
    display: flex;
    border: 1px solid var(--border);
    border-radius: 100px;
    overflow: hidden;
    flex-shrink: 0;
}

.toggle-btn {
    padding: 0.4rem 0.7rem;
    border: none;
    background: transparent;
    color: var(--text-secondary);
    cursor: pointer;
    font-size: 0.82rem;
    font-family: var(--font-body);
    font-weight: 500;
    transition: all var(--transition-fast);
}

.toggle-btn.active {
    background: var(--gradient-red);
    color: #fff;
}

/* ============ Results ============ */
.results-section {
    animation: slideUp 0.6s var(--ease-out-expo);
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Scroll-triggered chart card animations */
.chart-card {
    opacity: 0;
    transform: translateY(24px);
}

.chart-card.animate-in {
    animation: slideUp 0.6s var(--ease-out-expo) forwards;
}

.charts-grid .chart-card:nth-child(2) {
    animation-delay: 0.12s;
}

.section-title {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 1.3rem;
    margin-bottom: 1.5rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--border);
    font-weight: 700;
}

.section-title svg {
    width: 28px;
    height: 28px;
    color: var(--ampera-red);
}

/* ============ KPI Cards ============ */
.kpi-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1rem;
    margin-bottom: 2rem;
}

.kpi-card {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    text-align: center;
    backdrop-filter: blur(var(--glass-blur));
    -webkit-backdrop-filter: blur(var(--glass-blur));
    box-shadow: var(--glass-shadow);
    transition: transform var(--transition-medium), box-shadow var(--transition-medium);
    position: relative;
    overflow: hidden;
}

.kpi-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
}

.kpi-payback::before {
    background: var(--gradient-red);
}

.kpi-npv::before {
    background: linear-gradient(135deg, #22C55E, #4ADE80);
}

.kpi-irr::before {
    background: linear-gradient(135deg, #3B82F6, #60A5FA);
}

.kpi-power::before {
    background: linear-gradient(135deg, #8B5CF6, #A78BFA);
}

.kpi-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 16px 48px rgba(0, 0, 0, 0.1);
}

.kpi-label {
    font-size: 0.75rem;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
    font-weight: 500;
    line-height: 1.3;
}

.kpi-value {
    font-family: var(--font-display);
    font-weight: 800;
    font-size: 1.6rem;
    line-height: 1.2;
    margin-bottom: 0.2rem;
}

.kpi-payback .kpi-value {
    color: var(--ampera-red);
}

.kpi-npv .kpi-value {
    color: var(--green);
}

.kpi-irr .kpi-value {
    color: var(--blue);
}

.kpi-power .kpi-value {
    color: var(--purple);
}

.kpi-unit {
    font-size: 0.75rem;
    color: var(--text-muted);
}

/* ============ Charts ============ */
.charts-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
    margin-bottom: 1.5rem;
}

.chart-card {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    backdrop-filter: blur(var(--glass-blur));
    -webkit-backdrop-filter: blur(var(--glass-blur));
    box-shadow: var(--glass-shadow);
    position: relative;
    overflow: hidden;
    transition: transform var(--transition-medium), box-shadow var(--transition-medium);
}

/* Accent strip base */
.chart-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
}

.chart-revenue::before {
    background: var(--gradient-red);
}

.chart-npv::before {
    background: linear-gradient(135deg, #22C55E, #4ADE80);
}

.chart-cost-structure::before {
    background: linear-gradient(135deg, #3B82F6, #60A5FA);
}

.chart-cashflow::before {
    background: linear-gradient(135deg, #8B5CF6, #A78BFA);
}

.chart-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 16px 48px rgba(0, 0, 0, 0.1);
}

.chart-card h3 {
    font-size: 0.88rem;
    margin-bottom: 0.8rem;
    color: var(--text-secondary);
    font-family: var(--font-body);
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.chart-card h3 svg {
    width: 22px;
    height: 22px;
    flex-shrink: 0;
    opacity: 1;
}

.chart-icon--teal {
    filter: drop-shadow(0 0 4px rgba(42, 157, 143, 0.4));
}
.chart-icon--terracotta {
    filter: drop-shadow(0 0 4px rgba(231, 111, 81, 0.4));
}
.chart-icon--gold {
    filter: drop-shadow(0 0 4px rgba(233, 196, 106, 0.45));
}
.chart-icon--charcoal {
    filter: drop-shadow(0 0 4px rgba(38, 70, 83, 0.35));
}

.chart-container {
    position: relative;
    height: 360px;
}

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

/* Chart Tooltip */
.chart-tooltip {
    position: absolute;
    z-index: 50;
    background: var(--glass-bg);
    backdrop-filter: blur(var(--glass-blur));
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-sm);
    padding: 0.5rem 0.9rem;
    font-size: 0.85rem;
    color: var(--text-primary);
    pointer-events: none;
    white-space: nowrap;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
    opacity: 0;
    transition: opacity 0.15s;
    font-family: var(--font-body);
}

.chart-tooltip.visible {
    opacity: 1;
}

.chart-tooltip-label {
    font-weight: 600;
}

.chart-tooltip-value {
    color: var(--ampera-red);
    font-weight: 700;
    font-family: var(--font-display);
    font-size: 0.9rem;
}

/* ============ Table ============ */
.table-card {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    backdrop-filter: blur(var(--glass-blur));
    -webkit-backdrop-filter: blur(var(--glass-blur));
    box-shadow: var(--glass-shadow);
    margin-bottom: 2rem;
}

.table-card h3 {
    font-size: 0.92rem;
    margin-bottom: 0.8rem;
    color: var(--text-secondary);
    font-family: var(--font-body);
    font-weight: 600;
}

.table-scroll {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}

#projectionTable {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
    font-size: 0.78rem;
    white-space: nowrap;
    table-layout: fixed;
}

#projectionTable thead tr {
    background: rgba(227, 30, 36, 0.04);
}

#projectionTable th {
    padding: 0.5rem 0.4rem;
    font-family: var(--font-display);
    font-weight: 600;
    font-size: 0.72rem;
    color: var(--ampera-red);
    text-align: right;
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    background: rgba(255, 255, 255, 0.9);
}

#projectionTable th:first-child {
    text-align: left;
    width: 180px;
    min-width: 150px;
    position: sticky;
    left: 0;
    z-index: 2;
    background: rgba(255, 255, 255, 0.95);
}

#projectionTable td {
    padding: 0.4rem 0.4rem;
    text-align: right;
    border-bottom: 1px solid var(--border);
    color: var(--text-primary);
    transition: background 0.15s, font-weight 0.15s;
}

#projectionTable td:first-child {
    text-align: left;
    color: var(--text-secondary);
    font-weight: 600;
    position: sticky;
    left: 0;
    background: rgba(255, 255, 255, 0.95);
    overflow: hidden;
    text-overflow: ellipsis;
}

/* Cross-highlight */
#projectionTable tbody tr.row-hover td {
    background: var(--table-hover-bg);
}

#projectionTable tbody tr.row-hover td:first-child {
    background: var(--bg-card-hover);
}

#projectionTable td.col-hover {
    background: var(--table-col-hover-bg) !important;
}

#projectionTable th.col-hover {
    background: var(--table-col-hover-bg) !important;
    color: var(--ampera-red-light);
}

#projectionTable td.cell-active {
    font-weight: 900 !important;
    color: var(--text-primary) !important;
    background: rgba(227, 30, 36, 0.08) !important;
}

.row-highlight-revenue td {
    color: var(--green) !important;
}

.row-highlight-cost td {
    color: var(--ampera-red) !important;
}

.row-highlight-ebitda td {
    font-weight: 700;
}

.row-highlight-netprofit td {
    font-weight: 700;
}

.row-negative {
    color: var(--ampera-red) !important;
}

/* ============ Email / PDF Section ============ */
.email-section {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    backdrop-filter: blur(var(--glass-blur));
    -webkit-backdrop-filter: blur(var(--glass-blur));
    box-shadow: var(--glass-shadow);
    margin-bottom: 2rem;
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.email-section-icon {
    width: 50px;
    height: 50px;
    border-radius: var(--radius);
    background: rgba(227, 30, 36, 0.06);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    color: var(--ampera-red);
}

.email-section-icon svg {
    width: 24px;
    height: 24px;
}

.email-section-body {
    flex: 1;
}

.email-section-body h3 {
    font-size: 1rem;
    margin-bottom: 0.3rem;
}

.email-section-body p {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-bottom: 0.8rem;
}

.email-form {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.75rem;
}

.email-form input,
.email-form textarea {
    width: 100%;
    padding: 0.6rem 0.9rem;
    background: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-family: var(--font-body);
    font-size: 0.95rem;
    outline: none;
    transition: all var(--transition-fast);
    box-sizing: border-box;
}

.email-form textarea {
    grid-column: 1 / -1;
    resize: vertical;
    min-height: 60px;
}

.email-form input:focus,
.email-form textarea:focus {
    border-color: var(--border-focus);
    background: var(--bg-input-focus);
    box-shadow: 0 0 0 3px rgba(227, 30, 36, 0.08);
}

.btn-send {
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 100px;
    background: var(--gradient-red);
    color: #fff;
    font-family: var(--font-display);
    font-weight: 600;
    font-size: 0.85rem;
    cursor: pointer;
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    gap: 0.5rem;
    white-space: nowrap;
    box-shadow: 0 4px 16px rgba(227, 30, 36, 0.3);
}

.btn-send:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(227, 30, 36, 0.4);
}

.btn-send svg {
    width: 16px;
    height: 16px;
}

.send-status {
    font-size: 0.82rem;
    margin-top: 0.4rem;
    min-height: 1.2em;
}

.email-form .btn-send {
    grid-column: 1 / -1;
}

.send-status.success {
    color: var(--green);
}

.send-status.error {
    color: var(--ampera-red);
}

/* ============ Footer ============ */
.footer {
    position: relative;
    z-index: 1;
    text-align: center;
    padding: 2rem;
    background: var(--text-primary);
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.82rem;
}

.footer a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    transition: color var(--transition-fast);
}

.footer a:hover {
    color: #fff;
}

.footer p+p {
    margin-top: 0.3rem;
}

/* ============ Scrollbar ============ */
::-webkit-scrollbar {
    width: 6px;
}

::-webkit-scrollbar-track {
    background: var(--bg-secondary);
}

::-webkit-scrollbar-thumb {
    background: var(--text-muted);
    border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--text-secondary);
}

/* ============ App Animations ============ */
@keyframes fadeIn {
    from {
        opacity: 0;
    }

    to {
        opacity: 1;
    }
}

.app {
    animation: fadeIn 0.5s ease;
}

/* ============ Responsive ============ */
@media (max-width: 1024px) {
    .inputs-grid {
        grid-template-columns: repeat(2, 1fr);
    }

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

@media (max-width: 768px) {
    .inputs-grid {
        grid-template-columns: 1fr;
    }

    .charts-grid {
        grid-template-columns: 1fr;
    }

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

    .header {
        padding: 0.6rem 1rem;
        flex-wrap: wrap;
        gap: 0.5rem;
    }

    .header-title h1 {
        font-size: 0.85rem;
    }

    .header-logo-img {
        height: 28px;
    }

    .main {
        padding: 1rem;
    }

    .card-body {
        padding: 0.75rem 1rem 1.25rem;
    }

    .email-section {
        flex-direction: column;
        text-align: center;
    }

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

    #projectionTable {
        table-layout: auto;
    }

    .chart-container {
        height: 280px;
    }
}

@media (max-width: 480px) {
    html {
        font-size: 15px;
    }

    .kpi-grid {
        grid-template-columns: 1fr;
    }

    .form-row {
        flex-direction: column;
        gap: 0;
    }

    .header-title h1 {
        font-size: 0.78rem;
    }

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

    .kpi-value {
        font-size: 1.4rem;
    }

    .card {
        border-radius: var(--radius);
    }

    .kpi-card {
        border-radius: var(--radius);
    }

    .chart-card {
        border-radius: var(--radius);
    }

    .chart-container {
        height: 240px;
    }
}

/* Disable hover transforms on touch devices */
@media (hover: none) {
    .card:hover,
    .kpi-card:hover,
    .chart-card:hover {
        transform: none;
        box-shadow: var(--glass-shadow);
    }
}