/* ===== CSS VARIABLES ===== */
:root {
    /* Colors - Navy Corporate & Trust Palette (DEFAULT) */
    --primary: #1E3A8A;        /* Navy-800 - Stable, authoritative */
    --primary-dark: #1E40AF;   /* Blue-800 - For hover states */
    --primary-light: #3B82F6;  /* Blue-500 - For accents */
    --secondary: #F97316;      /* Orange-500 - Energetic complement */
    --accent: #EA580C;         /* Orange-600 - Depth and warmth */
    --accent-dark: #C2410C;    /* Orange-700 - Stronger depth */

    /* Text Colors - Clear and readable */
    --text-primary: #0F172A;   /* Slate-900 - Strong, readable */
    --text-secondary: #475569; /* Slate-600 - Secondary text */
    --text-light: #64748B;     /* Slate-500 - Subtle text */

    /* Background Colors */
    --bg-white: #FFFFFF;
    --bg-gray: #F1F5F9;        /* Slate-100 - Neutral, professional */
    --bg-dark: #1E3A8A;        /* Navy-800 - Dark sections */
    --border: #E2E8F0;         /* Slate-200 - Borders */

    /* Gradient - For text effects only */
    --gradient-text: linear-gradient(135deg, #1E3A8A 0%, #F97316 100%);

    /* Button Colors - Solid Navy (Corporate & Professional) */
    --button-primary-bg: #1E3A8A;        /* Navy-800 - Main CTA */
    --button-primary-bg-hover: #1E40AF;  /* Blue-800 - Hover state */

    /* Spacing - Consistent scale */
    --space-xs: 0.5rem;    /* 8px */
    --space-sm: 1rem;      /* 16px */
    --space-md: 1.5rem;    /* 24px */
    --space-lg: 2rem;      /* 32px */
    --space-xl: 3rem;      /* 48px */
    --space-2xl: 4rem;     /* 64px */
    --space-3xl: 6rem;     /* 96px */

    /* Typography - Harmonious scale */
    --font-base: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-size-xs: 0.75rem;      /* 12px */
    --font-size-sm: 0.875rem;     /* 14px */
    --font-size-base: 1rem;       /* 16px - Base size */
    --font-size-lg: 1.125rem;     /* 18px */
    --font-size-xl: 1.25rem;      /* 20px */
    --font-size-2xl: 1.5rem;      /* 24px */
    --font-size-3xl: 1.75rem;     /* 28px - Reduced for better hierarchy */
    --font-size-4xl: 2rem;        /* 32px - Reduced for better hierarchy */
    --font-size-5xl: 2.5rem;      /* 40px - Reduced for better readability */

    /* Border Radius - Consistent scale */
    --radius-sm: 0.375rem;   /* 6px */
    --radius-md: 0.5rem;     /* 8px - Standard for buttons */
    --radius-lg: 0.75rem;    /* 12px */
    --radius-xl: 1rem;       /* 16px - Cards */

    /* Shadows - Subtle and consistent */
    --shadow-sm: 0 1px 2px 0 rgba(15, 23, 42, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(15, 23, 42, 0.08);
    --shadow-lg: 0 10px 15px -3px rgba(15, 23, 42, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(15, 23, 42, 0.12);
}

/* ===== RESET & BASE ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-base);
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--bg-white);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-md);
}

a {
    text-decoration: none;
    color: inherit;
    transition: all 0.3s ease;
}

button {
    border: none;
    cursor: pointer;
    font-family: inherit;
    transition: all 0.3s ease;
}

img {
    max-width: 100%;
    height: auto;
}

/* ===== HEADER ===== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border);
    z-index: 1000;
    padding: var(--space-sm) 0;
}

.header-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    font-weight: 700;
    font-size: var(--font-size-xl);
}

.logo-icon {
    font-size: var(--font-size-2xl);
}

.nav {
    display: flex;
    gap: var(--space-lg);
}

.nav-link {
    font-weight: 500;
    color: var(--text-secondary);
}

.nav-link:hover {
    color: var(--primary);
}

.cta-button {
    background: var(--button-primary-bg);
    color: white;
    padding: 0.5rem 1rem;        /* Small button: 8px 16px */
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: var(--font-size-base);
    white-space: nowrap;
    transition: all 0.3s ease;
}

.cta-button:hover {
    background: var(--button-primary-bg-hover);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

/* ===== HERO SECTION ===== */
.hero {
    padding: calc(var(--space-3xl) + 60px) 0 var(--space-3xl);
    text-align: center;
    background: linear-gradient(180deg, var(--bg-gray) 0%, var(--bg-white) 100%);
}

.hero-content {
    max-width: 900px;
    margin: 0 auto;
}

.hero-title {
    font-size: var(--font-size-5xl);
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: var(--space-md);
}

.gradient-text {
    background: var(--gradient-text);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: var(--font-size-xl);
    color: var(--text-secondary);
    font-weight: 600;
    margin-bottom: var(--space-lg);
}

.hero-description {
    font-size: var(--font-size-lg);
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: var(--space-sm);    /* 16px - Reduced for better spacing */
}

.hero-note {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    opacity: 0.8;
    margin-bottom: var(--space-lg);    /* 32px - Consistent spacing before buttons */
}

.hero-buttons {
    display: flex;
    gap: var(--space-md);             /* 24px - Space between buttons */
    justify-content: center;
    flex-wrap: wrap;
}

.button {
    padding: 0.75rem 1.5rem;      /* Medium button: 12px 24px */
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: var(--font-size-base);
    display: inline-block;
    transition: all 0.3s ease;
}

.button-primary {
    background: var(--button-primary-bg);
    color: white;
    box-shadow: var(--shadow-md);
}

.button-primary:hover {
    background: var(--button-primary-bg-hover);
    transform: translateY(-2px);
    box-shadow: var(--shadow-xl);
}

.button-secondary {
    background: var(--bg-white);
    color: var(--primary);
    border: 2px solid var(--primary);
}

.button-secondary:hover {
    background: var(--primary);
    color: white;
    border-color: var(--primary);
}

/* ===== STATS SECTION ===== */
.stats {
    padding: var(--space-3xl) 0;
    background: var(--primary);
    color: white;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--space-xl);
}

.stat-card {
    text-align: center;
    padding: var(--space-lg);
}

.stat-number {
    font-size: var(--font-size-5xl);
    font-weight: 800;
    margin-bottom: var(--space-sm);
}

.stat-label {
    font-size: var(--font-size-xl);
    font-weight: 600;
    margin-bottom: var(--space-xs);
}

.stat-description {
    font-size: var(--font-size-sm);
    opacity: 0.9;
}

.stats-disclaimer {
    text-align: center;
    margin-top: var(--space-lg);      /* 32px - Breathing room after stats */
    font-size: var(--font-size-sm);
    opacity: 0.7;
    color: white;
}

/* ===== FEATURES SECTION ===== */
.features {
    padding: var(--space-3xl) 0;
}

.section-title {
    font-size: var(--font-size-4xl);
    font-weight: 800;
    text-align: center;
    margin-bottom: var(--space-md);   /* 24px - Title to subtitle */
}

.section-subtitle {
    font-size: var(--font-size-lg);
    color: var(--text-secondary);
    text-align: center;
    margin-bottom: var(--space-xl);   /* 48px - Reduced from 64px for better proportion */
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--space-xl);
}

.feature-card {
    background: var(--bg-white);
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    padding: var(--space-xl);
    transition: all 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
    border-color: var(--primary);
}

.feature-icon {
    font-size: var(--font-size-4xl);
    margin-bottom: var(--space-md);
}

.feature-title {
    font-size: var(--font-size-xl);
    font-weight: 700;
    margin-bottom: var(--space-sm);
}

.feature-description {
    color: var(--text-secondary);
    margin-bottom: var(--space-md);
    line-height: 1.7;
}

.feature-list {
    list-style: none;
}

.feature-list li {
    padding-left: var(--space-md);
    margin-bottom: var(--space-xs);
    position: relative;
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
}

.feature-list li::before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--secondary);
    font-weight: bold;
}

/* ===== TECHNOLOGY SECTION ===== */
.technology {
    padding: var(--space-3xl) 0;
    background: var(--bg-gray);
}

.tech-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--space-xl);
}

.tech-category {
    background: var(--bg-white);
    border-radius: var(--radius-xl);
    padding: var(--space-xl);
    box-shadow: var(--shadow-md);
}

.tech-category-title {
    font-size: var(--font-size-xl);
    font-weight: 700;
    margin-bottom: var(--space-md);
    padding-bottom: var(--space-md);
    border-bottom: 2px solid var(--border);
}

.tech-items {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.tech-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--space-sm);
    background: var(--bg-gray);
    border-radius: var(--radius-md);
}

.tech-name {
    font-weight: 600;
    color: var(--text-primary);
}

.tech-badge {
    font-size: var(--font-size-xs);
    padding: 0.25rem 0.5rem;
    background: var(--primary);
    color: white;
    border-radius: var(--radius-sm);
    font-weight: 600;
}

/* ===== ROADMAP SECTION ===== */
.roadmap {
    padding: var(--space-3xl) 0;
}

.timeline {
    max-width: 900px;
    margin: 0 auto;
    position: relative;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 60px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--border);
}

.timeline-item {
    display: flex;
    gap: var(--space-lg);
    margin-bottom: var(--space-2xl);
    position: relative;
}

.timeline-marker {
    flex-shrink: 0;
    width: 120px;
    height: 120px;
    background: var(--gradient-text);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-2xl);
    font-weight: 800;
    box-shadow: var(--shadow-lg);
    z-index: 2;
}

.timeline-content {
    flex: 1;
    background: var(--bg-white);
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    padding: var(--space-xl);
    box-shadow: var(--shadow-md);
}

.timeline-title {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    margin-bottom: var(--space-sm);
    color: var(--primary);
}

.timeline-description {
    color: var(--text-secondary);
    margin-bottom: var(--space-md);
    font-size: var(--font-size-lg);
}

.timeline-list {
    list-style: none;
    margin-bottom: var(--space-md);
}

.timeline-list li {
    padding-left: var(--space-md);
    margin-bottom: var(--space-xs);
    position: relative;
    color: var(--text-secondary);
}

.timeline-list li::before {
    content: "▸";
    position: absolute;
    left: 0;
    color: var(--primary);
    font-weight: bold;
}

.timeline-budget {
    padding: var(--space-sm) var(--space-md);
    background: var(--bg-gray);
    border-radius: var(--radius-md);
    font-weight: 600;
    color: var(--text-primary);
    font-size: var(--font-size-sm);
}

/* ===== CONTACT SECTION ===== */
.contact {
    padding: var(--space-3xl) 0;
    background: var(--bg-gray);
}

.contact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: var(--space-2xl);
    max-width: 1000px;
    margin: 0 auto;
}

.contact-info {
    background: var(--bg-white);
    border-radius: var(--radius-xl);
    padding: var(--space-xl);
    box-shadow: var(--shadow-md);
}

.contact-title {
    font-size: var(--font-size-xl);
    font-weight: 700;
    margin-bottom: var(--space-lg);
    color: var(--primary);
}

.contact-item {
    display: flex;
    gap: var(--space-md);
    margin-bottom: var(--space-md);
}

.contact-icon {
    font-size: var(--font-size-2xl);
    flex-shrink: 0;
}

.contact-label {
    font-size: var(--font-size-sm);
    color: var(--text-light);
    margin-bottom: 0.25rem;
}

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

.contact-value a {
    color: var(--primary);
}

.contact-value a:hover {
    text-decoration: underline;
}

.contact-form {
    background: var(--bg-white);
    border-radius: var(--radius-xl);
    padding: var(--space-xl);
    box-shadow: var(--shadow-md);
}

.form-group {
    margin-bottom: var(--space-md);
}

.form-group label {
    display: block;
    font-weight: 600;
    margin-bottom: var(--space-xs);
    color: var(--text-primary);
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: var(--space-sm) var(--space-md);
    background: var(--bg-white);
    color: var(--text-primary);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    font-family: inherit;
    font-size: var(--font-size-base);
    transition: all 0.3s ease;
}

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

.form-group textarea {
    resize: vertical;
}

/* ===== FOOTER ===== */
.footer {
    background: var(--bg-dark);
    color: white;
    padding: var(--space-xl) 0;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--space-md);
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    font-weight: 700;
    font-size: var(--font-size-xl);
    margin-bottom: var(--space-xs);
}

.footer-tagline {
    opacity: 0.7;
    font-size: var(--font-size-sm);
}

.footer-right {
    text-align: right;
}

.footer-copyright,
.footer-version {
    opacity: 0.7;
    font-size: var(--font-size-sm);
}

.footer-disclaimer {
    font-size: 0.85rem;           /* 13.6px - Slightly smaller */
    opacity: 0.7;
    margin-top: var(--space-xs);  /* 8px - Small gap above */
}

/* ===== THEME SWITCHER ===== */
.theme-switcher-btn {
    background: var(--bg-white);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 0.5rem;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: var(--space-sm);
}

.theme-switcher-btn:hover {
    background: var(--bg-gray);
    border-color: var(--primary);
    transform: translateY(-2px);
}

.theme-icon {
    font-size: 1.25rem;
    line-height: 1;
}

/* Theme Modal */
.theme-modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: 9999;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(4px);
}

.theme-modal.active {
    display: flex;
}

.theme-modal-content {
    background: var(--bg-white);
    border-radius: var(--radius-lg);
    padding: var(--space-xl);
    max-width: 600px;
    width: 90%;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: var(--shadow-xl);
    animation: modalFadeIn 0.3s ease;
}

@keyframes modalFadeIn {
    from {
        opacity: 0;
        transform: scale(0.9) translateY(-20px);
    }
    to {
        opacity: 1;
        transform: scale(1) translateY(0);
    }
}

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

.theme-modal-header h3 {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    color: var(--text-primary);
    margin: 0;
}

.theme-modal-close {
    background: transparent;
    border: none;
    font-size: 2rem;
    line-height: 1;
    cursor: pointer;
    color: var(--text-secondary);
    padding: 0;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-md);
    transition: all 0.2s ease;
}

.theme-modal-close:hover {
    background: var(--bg-gray);
    color: var(--text-primary);
}

.theme-options {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-md);
}

.theme-option {
    background: var(--bg-white);
    border: 2px solid var(--border);
    border-radius: var(--radius-lg);
    padding: var(--space-md);
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: var(--space-md);
    text-align: left;
}

.theme-option:hover {
    border-color: var(--primary);
    transform: translateX(4px);
    box-shadow: var(--shadow-md);
}

.theme-option.active {
    border-color: var(--primary);
    background: var(--bg-gray);
    box-shadow: var(--shadow-md);
}

.theme-preview {
    flex-shrink: 0;
}

.theme-color {
    width: 60px;
    height: 60px;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
}

.theme-name {
    display: block;
    font-weight: 600;
    font-size: var(--font-size-lg);
    color: var(--text-primary);
    margin-bottom: 0.25rem;
}

.theme-desc {
    display: block;
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
}

/* Add smooth transition to all color changes */
:root {
    transition: all 0.3s ease;
}

* {
    transition-property: background-color, border-color, color;
    transition-duration: 0.3s;
    transition-timing-function: ease;
}

/* ===== GO TO TOP BUTTON ===== */
.go-top-btn {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 50px;
    height: 50px;
    background: var(--primary);
    color: white;
    border: 3px solid white;        /* White border for visibility on all backgrounds */
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-lg);
    transition: all 0.3s ease;
    opacity: 0;
    visibility: hidden;
    z-index: 1000;
}

.go-top-btn.show {
    opacity: 1;
    visibility: visible;
}

.go-top-btn:hover {
    background: var(--primary-dark);
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
}

.go-top-btn:active {
    transform: translateY(-2px);
}

.go-top-btn svg {
    width: 24px;
    height: 24px;
}

/* ===== CALL PHONE BUTTON ===== */
.call-phone-btn {
    position: fixed;
    bottom: calc(2rem + 50px + 1rem);  /* Above Go to Top button (2rem + 50px height + 1rem gap) */
    right: 2rem;
    width: 50px;
    height: 50px;
    background: var(--secondary);       /* Orange-500 */
    color: white;
    border: 3px solid white;        /* White border for visibility on all backgrounds */
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-lg);
    transition: all 0.3s ease;
    z-index: 999;                      /* Below Go to Top (1000) */
    text-decoration: none;
}

.call-phone-btn:hover {
    background: var(--accent);          /* Orange-600 - Darker */
    transform: translateY(-4px);        /* Lift effect */
    box-shadow: var(--shadow-xl);
}

.call-phone-btn:active {
    transform: translateY(-2px);        /* Press effect */
}

.call-phone-btn svg {
    width: 24px;
    height: 24px;
}

/* ===== RESPONSIVE DESIGN ===== */
@media (max-width: 768px) {
    :root {
        /* Reduced font sizes for tablet */
        --font-size-5xl: 2rem;      /* 32px - Reduced from 40px */
        --font-size-4xl: 1.75rem;   /* 28px - Reduced from 32px */
        --font-size-3xl: 1.5rem;    /* 24px - Reduced from 28px */
    }

    /* Hide navigation menu on tablet and mobile */
    .nav {
        display: none;
    }

    /* Keep header simple - logo, theme switcher, and CTA */
    .header-content {
        flex-direction: row;
        justify-content: space-between;
        align-items: center;
        gap: var(--space-xs);
    }

    .logo {
        font-size: var(--font-size-lg);
        flex-shrink: 0;
    }

    .theme-switcher-btn {
        padding: 0.4rem;
        margin-right: 0;
    }

    .theme-icon {
        font-size: 1.1rem;
    }

    .cta-button {
        padding: 0.5rem 1rem;       /* Small button consistent */
        font-size: var(--font-size-sm);
        flex-shrink: 0;
    }

    .theme-modal-content {
        padding: var(--space-lg);
        width: 95%;
    }

    .theme-options {
        gap: var(--space-sm);
    }

    .theme-option {
        padding: var(--space-sm);
    }

    .theme-color {
        width: 50px;
        height: 50px;
    }

    .theme-name {
        font-size: var(--font-size-base);
    }

    .theme-desc {
        font-size: var(--font-size-xs);
    }

    .hero {
        padding: calc(var(--space-2xl) + 120px) 0 var(--space-2xl);
    }

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

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

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

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

    .timeline::before {
        left: 50px;
    }

    .timeline-marker {
        width: 100px;
        height: 100px;
        font-size: var(--font-size-xl);
    }

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

    .footer-content {
        flex-direction: column;
        text-align: center;
    }

    .footer-right {
        text-align: center;
    }
}

@media (max-width: 480px) {
    :root {
        /* Further reduced font sizes for mobile */
        --font-size-5xl: 1.75rem;   /* 28px - Mobile optimized */
        --font-size-4xl: 1.5rem;    /* 24px - Mobile optimized */
        --font-size-3xl: 1.25rem;   /* 20px - Mobile optimized */
    }

    .container {
        padding: 0 var(--space-sm);
    }

    /* Hide navigation menu on mobile */
    .nav {
        display: none;
    }

    /* Keep header simple on mobile - logo, theme switcher, and CTA */
    .header-content {
        flex-direction: row;
        justify-content: space-between;
        align-items: center;
        gap: 0.25rem;
    }

    .logo {
        font-size: var(--font-size-base);
        flex-shrink: 0;
    }

    .theme-switcher-btn {
        padding: 0.35rem;
        margin-right: 0;
    }

    .theme-icon {
        font-size: 1rem;
    }

    .cta-button {
        padding: 0.5rem 0.875rem;   /* Slightly smaller: 8px 14px */
        font-size: var(--font-size-sm);
        flex-shrink: 0;
    }

    .theme-modal-content {
        padding: var(--space-md);
        width: 95%;
    }

    .theme-modal-header h3 {
        font-size: var(--font-size-xl);
    }

    .theme-option {
        padding: var(--space-sm);
        gap: var(--space-sm);
    }

    .theme-color {
        width: 45px;
        height: 45px;
    }

    .button {
        padding: 0.625rem 1.25rem;  /* Slightly smaller: 10px 20px */
    }

    .feature-card,
    .tech-category,
    .timeline-content {
        padding: var(--space-md);
    }

    .go-top-btn {
        bottom: 1rem;
        right: 1rem;
        width: 45px;
        height: 45px;
    }

    .go-top-btn svg {
        width: 20px;
        height: 20px;
    }

    .call-phone-btn {
        bottom: calc(1rem + 45px + 0.75rem);  /* Above Go to Top on mobile */
        right: 1rem;
        width: 45px;
        height: 45px;
    }

    .call-phone-btn svg {
        width: 20px;
        height: 20px;
    }
}