/* ==========================================================================
   Evora Glen Landing Page - Stylesheet
   Design System: Warm & Organic Luxury
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. Design System & Variables
   -------------------------------------------------------------------------- */
:root {
    /* Color Palette (HSL optimized for Slate & Linen) */
    --color-primary: hsl(180, 25%, 25%); /* Dark Slate Gray (#2f4f4f) */
    --color-primary-light: hsl(180, 20%, 35%); /* Medium Slate Gray (#496b6b) */
    --color-primary-dark: hsl(
        180,
        30%,
        15%
    ); /* Deep Slate Charcoal (#192c2c) */
    --color-secondary: hsl(50, 20%, 98%); /* Warm Cotton White (#faf9f5) */
    --color-secondary-dark: hsl(50, 30%, 93%); /* Warm Linen Sand (#ebe6d5) */
    --color-accent: hsl(50, 41%, 91%); /* Soft Linen Cream (#f2eedc) */
    --color-accent-hover: hsl(50, 45%, 83%); /* Warm Sand (#e5dcbd) */
    --color-text-primary: hsl(
        180,
        30%,
        15%
    ); /* Deep Slate Charcoal (#192c2c) */
    --color-text-muted: hsl(180, 12%, 46%); /* Muted Slate Gray (#688282) */
    --color-white: hsl(0, 0%, 100%);
    --color-error: hsl(0, 75%, 45%);
    --color-success: hsl(135, 55%, 35%);

    /* Typography */
    --font-headings: "Playfair Display", Georgia, serif;
    --font-body:
        "Inter", system-ui, -apple-system, BlinkMacSystemFont, sans-serif;

    /* Layout & Spacing */
    --header-height: 80px;
    --header-shrink-height: 70px;
    --container-max-width: 1200px;
    --border-radius-sm: 4px;
    --border-radius-md: 8px;
    --border-radius-lg: 16px;

    /* Transitions & Shadows */
    --transition-smooth: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    --transition-fast: all 0.2s ease-out;
    --shadow-sm:
        0 4px 6px -1px rgba(0, 0, 0, 0.05), 0 2px 4px -1px rgba(0, 0, 0, 0.03);
    --shadow-md:
        0 10px 15px -3px rgba(0, 0, 0, 0.08), 0 4px 6px -2px rgba(0, 0, 0, 0.04);
    --shadow-lg:
        0 20px 25px -5px rgba(0, 0, 0, 0.12),
        0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --shadow-nav: 0 4px 30px rgba(0, 0, 0, 0.03);

    /* Glassmorphism overlays */
    --glass-bg: rgba(253, 251, 247, 0.75);
    --glass-border: rgba(30, 53, 47, 0.08);
    --glass-blur: blur(12px);
}

/* --------------------------------------------------------------------------
   2. Reset & Typography Base
   -------------------------------------------------------------------------- */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    scroll-padding-top: var(--header-height);
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: var(--font-body);
    background-color: var(--color-secondary);
    color: var(--color-text-primary);
    line-height: 1.6;
    font-weight: 400;
    overflow-x: hidden;
}

h1,
h2,
h3,
h4,
h5,
h6 {
    font-family: var(--font-headings);
    font-weight: 600;
    line-height: 1.3;
}

a {
    color: inherit;
    text-decoration: none;
    transition: var(--transition-fast);
}

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

button,
select,
input {
    font-family: inherit;
    font-size: inherit;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 10px;
}
::-webkit-scrollbar-track {
    background: var(--color-secondary-dark);
}
::-webkit-scrollbar-thumb {
    background: var(--color-primary);
    border: 2px solid var(--color-secondary-dark);
    border-radius: 5px;
}
::-webkit-scrollbar-thumb:hover {
    background: var(--color-accent);
}

/* --------------------------------------------------------------------------
   3. Reusable Layout Utilities
   -------------------------------------------------------------------------- */
.section-container {
    width: 100%;
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 80px 24px;
}

.section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 50px auto;
}

.section-tag {
    display: inline-block;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--color-primary-light);
    font-weight: 600;
    margin-bottom: 12px;
}

.section-tag.tag-white {
    color: var(--color-accent);
}

.section-title {
    font-size: 2.5rem;
    color: var(--color-primary);
    margin-bottom: 16px;
    position: relative;
}

.section-title.text-white {
    color: var(--color-secondary);
}

.section-subtitle {
    font-size: 1.1rem;
    color: var(--color-text-muted);
}

.section-subtitle.text-cream {
    color: var(--color-secondary-dark);
}

/* Scroll Reveal Base CSS */
.scroll-reveal {
    opacity: 0;
    transform: translateY(30px);
    transition:
        opacity 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94),
        transform 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.scroll-reveal.active {
    opacity: 1;
    transform: translateY(0);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 28px;
    font-size: 0.95rem;
    font-weight: 500;
    border-radius: var(--border-radius-sm);
    border: 1px solid transparent;
    cursor: pointer;
    letter-spacing: 0.05em;
    transition: var(--transition-smooth);
}

.btn-primary {
    background-color: var(--color-accent);
    color: var(--color-primary-dark);
    border-color: var(--color-accent);
}

.btn-primary:hover {
    background-color: transparent;
    color: var(--color-accent);
    border-color: var(--color-accent);
}

.btn-secondary {
    background-color: transparent;
    color: var(--color-white);
    border-color: var(--color-white);
}

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

/* --------------------------------------------------------------------------
   4. Header & Navigation (Glassmorphism)
   -------------------------------------------------------------------------- */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: var(--header-height);
    z-index: 1000;
    background-color: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border-bottom: 1px solid var(--glass-border);
    transition: var(--transition-smooth);
}

.header.shrunk {
    height: var(--header-shrink-height);
    box-shadow: var(--shadow-nav);
}

.header-container {
    max-width: var(--container-max-width);
    height: 100%;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.header-logo {
    display: flex;
    align-items: center;
    gap: 12px;
}

.nav-logo-img {
    height: 56px;
    width: auto;
    object-fit: contain;
    transition: var(--transition-smooth);
}

.header.shrunk .nav-logo-img {
    height: 48px;
}

.nav-logo-text {
    font-family: var(--font-headings);
    font-size: 1.3rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    color: var(--color-primary);
}

/* Desktop Nav Menu */
.desktop-nav {
    display: flex;
    align-items: center;
    gap: 32px;
}

.nav-link {
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--color-primary);
    position: relative;
    padding: 6px 0;
}

.nav-link::after {
    content: "";
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background-color: var(--color-primary-light);
    transform: scaleX(0);
    transform-origin: right;
    transition: transform 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.nav-link:hover::after,
.nav-link.active::after {
    transform: scaleX(1);
    transform-origin: left;
}

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

.nav-btn {
    background-color: var(--color-primary);
    color: var(--color-white);
    padding: 10px 20px;
    border-radius: var(--border-radius-sm);
    font-size: 0.9rem;
    font-weight: 500;
}

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

/* Mobile Toggle Hamburger */
.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}

.mobile-menu-toggle .bar {
    display: block;
    width: 25px;
    height: 2px;
    margin: 5px auto;
    background-color: var(--color-primary);
    transition: var(--transition-smooth);
}

/* Mobile Navigation Drawer */
.mobile-nav {
    display: none;
}

/* --------------------------------------------------------------------------
   5. Hero Section
   -------------------------------------------------------------------------- */
.hero-section {
    position: relative;
    width: 100%;
    height: 100vh;
    min-height: 600px;
    display: flex;
    align-items: center;
    background-image: url("assets/hero_townhouse.jpg");
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
}

.hero-background-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        to bottom,
        rgba(47, 79, 79, 0.8) 0%,
        rgba(47, 79, 79, 0.7) 50%,
        rgba(47, 79, 79, 0.85) 100%
    );
    z-index: 1;
}

.hero-content {
    position: relative;
    z-index: 2;
    width: 100%;
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 24px;
}

.hero-subtitle {
    font-size: 0.95rem;
    text-transform: uppercase;
    letter-spacing: 0.25em;
    color: var(--color-accent);
    font-weight: 600;
    display: block;
    margin-bottom: 20px;
}

.hero-title {
    font-size: 4rem;
    color: var(--color-white);
    max-width: 800px;
    margin-bottom: 24px;
    line-height: 1.2;
}

.hero-description {
    font-size: 1.25rem;
    color: var(--color-secondary-dark);
    max-width: 600px;
    margin-bottom: 40px;
    font-weight: 300;
}

.hero-actions {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

.scroll-indicator {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 2;
    display: flex;
    flex-direction: column;
    align-items: center;
    color: var(--color-secondary-dark);
}

.mouse-icon {
    width: 26px;
    height: 42px;
    border: 2px solid var(--color-secondary-dark);
    border-radius: 20px;
    position: relative;
}

.mouse-wheel {
    width: 4px;
    height: 8px;
    background-color: var(--color-accent);
    border-radius: 2px;
    position: absolute;
    top: 8px;
    left: 50%;
    transform: translateX(-50%);
    animation: scrollMouse 1.8s infinite ease-in-out;
}

@keyframes scrollMouse {
    0% {
        top: 8px;
        opacity: 1;
    }
    100% {
        top: 22px;
        opacity: 0;
    }
}

/* --------------------------------------------------------------------------
   6. Discover Section (About)
   -------------------------------------------------------------------------- */
.about-section {
    background-color: var(--color-secondary);
}

.about-grid {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 60px;
    align-items: center;
}

.section-lead {
    font-size: 1.25rem;
    font-family: var(--font-headings);
    color: var(--color-primary-light);
    margin-bottom: 24px;
    line-height: 1.4;
}

.section-body {
    font-size: 1rem;
    color: var(--color-text-muted);
    margin-bottom: 30px;
}

.developer-attribution {
    display: flex;
    flex-direction: column;
    gap: 8px;
    border-top: 1px solid var(--color-secondary-dark);
    padding-top: 20px;
}

.dev-label {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-text-muted);
}

.dev-logo-small {
    height: 48px;
    width: auto;
    align-self: flex-start;
    object-fit: contain;
}

.about-image-container {
    position: relative;
}

.about-main-image {
    width: 100%;
    border-radius: var(--border-radius-md);
    box-shadow: var(--shadow-lg);
    object-fit: cover;
}

.experience-card {
    position: absolute;
    bottom: -25px;
    left: -25px;
    background-color: var(--color-primary);
    color: var(--color-white);
    padding: 24px 30px;
    border-radius: var(--border-radius-sm);
    box-shadow: var(--shadow-md);
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    border-bottom: 3px solid var(--color-accent);
}

.experience-num {
    font-family: var(--font-headings);
    font-size: 3rem;
    font-weight: 700;
    line-height: 1;
    color: var(--color-accent);
}

.experience-txt {
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-top: 4px;
}

/* --------------------------------------------------------------------------
   7. Gallery Section (Your Calm Haven)
   -------------------------------------------------------------------------- */
.gallery-section {
    background-color: var(--color-secondary-dark);
}

.gallery-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 30px;
}

.gallery-item {
    position: relative;
    overflow: hidden;
    border-radius: var(--border-radius-md);
    box-shadow: var(--shadow-md);
    height: 350px;
}

.gallery-item.item-large {
    grid-column: span 2;
    height: 500px;
}

.gallery-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition-smooth);
}

.gallery-item::after {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        to top,
        rgba(30, 53, 47, 0.85) 0%,
        rgba(30, 53, 47, 0) 60%
    );
    z-index: 1;
    opacity: 0.8;
    transition: var(--transition-smooth);
}

.gallery-caption {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    padding: 30px;
    z-index: 2;
    color: var(--color-white);
    transform: translateY(10px);
    transition: var(--transition-smooth);
}

.gallery-caption h3 {
    font-size: 1.75rem;
    color: var(--color-accent);
    margin-bottom: 8px;
}

.gallery-caption p {
    font-size: 0.95rem;
    color: var(--color-secondary-dark);
    opacity: 0.9;
}

.gallery-item:hover img {
    transform: scale(1.05);
}

.gallery-item:hover::after {
    opacity: 1;
}

.gallery-item:hover .gallery-caption {
    transform: translateY(0);
}

/* --------------------------------------------------------------------------
   8. Features Grid Section
   -------------------------------------------------------------------------- */
.features-section {
    background-color: var(--color-secondary);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.feature-card {
    background-color: var(--color-secondary);
    border: 1px solid var(--color-secondary-dark);
    border-radius: var(--border-radius-md);
    padding: 40px 30px;
    box-shadow: var(--shadow-sm);
    transition: var(--transition-smooth);
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background-color: var(--color-accent);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.3s ease-out;
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
    border-color: rgba(197, 168, 128, 0.2);
}

.feature-card:hover::before {
    transform: scaleX(1);
}

.feature-icon {
    width: 60px;
    height: 60px;
    border-radius: var(--border-radius-sm);
    background-color: rgba(30, 53, 47, 0.04);
    color: var(--color-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 24px;
    transition: var(--transition-smooth);
}

.feature-icon svg {
    width: 32px;
    height: 32px;
    stroke: var(--color-primary);
}

.feature-card:hover .feature-icon {
    background-color: var(--color-primary);
    color: var(--color-accent);
}

.feature-card:hover .feature-icon svg {
    stroke: var(--color-accent);
    transform: scale(1.1);
}

.feature-card h3 {
    font-size: 1.35rem;
    color: var(--color-primary);
    margin-bottom: 12px;
}

.feature-card p {
    font-size: 0.95rem;
    color: var(--color-text-muted);
}

/* --------------------------------------------------------------------------
   9. Video Section
   -------------------------------------------------------------------------- */
.video-section {
    background-color: var(--color-primary);
    position: relative;
    overflow: hidden;
}

.video-card {
    max-width: 900px;
    margin: 0 auto;
    padding: 80px 24px;
    text-align: center;
}

.video-card .section-title {
    margin-bottom: 16px;
}

.video-card .section-subtitle {
    margin-bottom: 40px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.iframe-container {
    position: relative;
    width: 100%;
    aspect-ratio: 16 / 9;
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    border: 1px solid rgba(253, 251, 247, 0.1);
    background-color: var(--color-primary-dark);
}

.iframe-container iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: 0;
}

/* --------------------------------------------------------------------------
   10. Connective Community Hub (Tabs)
   -------------------------------------------------------------------------- */
.transit-hub-section {
    background-color: var(--color-secondary);
}

.tab-container {
    width: 100%;
    margin-top: 40px;
}

.tab-headers {
    display: flex;
    justify-content: center;
    gap: 12px;
    border-bottom: 1px solid var(--color-secondary-dark);
    margin-bottom: 40px;
}

.tab-header {
    background: none;
    border: none;
    padding: 16px 32px;
    font-size: 1.05rem;
    font-weight: 500;
    color: var(--color-text-muted);
    cursor: pointer;
    position: relative;
    transition: var(--transition-fast);
}

.tab-header::after {
    content: "";
    position: absolute;
    bottom: -1px;
    left: 0;
    width: 100%;
    height: 3px;
    background-color: var(--color-primary);
    transform: scaleX(0);
    transition: var(--transition-fast);
}

.tab-header.active {
    color: var(--color-primary);
    font-weight: 600;
}

.tab-header.active::after {
    transform: scaleX(1);
}

.tab-header:hover {
    color: var(--color-primary);
}

.tab-content {
    display: none;
    animation: fadeInTab 0.5s ease;
}

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

@keyframes fadeInTab {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.tab-grid {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 50px;
    align-items: center;
}

.tab-text h3 {
    font-size: 1.75rem;
    color: var(--color-primary);
    margin-bottom: 16px;
}

.tab-text p {
    color: var(--color-text-muted);
    margin-bottom: 24px;
}

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

.hub-list li {
    position: relative;
    padding-left: 28px;
    margin-bottom: 16px;
    font-size: 0.95rem;
    color: var(--color-text-primary);
}

.hub-list li::before {
    content: "";
    position: absolute;
    left: 0;
    top: 8px;
    width: 8px;
    height: 8px;
    background-color: var(--color-accent);
    border-radius: 50%;
}

.tab-stats {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.stat-box {
    background-color: var(--color-secondary-dark);
    border-left: 4px solid var(--color-accent);
    padding: 24px;
    border-radius: var(--border-radius-sm);
    box-shadow: var(--shadow-sm);
    display: flex;
    flex-direction: column;
}

.stat-num {
    font-family: var(--font-headings);
    font-size: 2.75rem;
    font-weight: 700;
    line-height: 1;
    color: var(--color-primary);
}

.stat-unit {
    font-size: 0.9rem;
    text-transform: uppercase;
    color: var(--color-accent);
    font-weight: 600;
    letter-spacing: 0.05em;
    margin: 4px 0;
}

.stat-label {
    font-size: 0.85rem;
    color: var(--color-text-muted);
}

/* --------------------------------------------------------------------------
   11. Map Section
   -------------------------------------------------------------------------- */
.map-section {
    background-color: var(--color-secondary-dark);
    width: 100%;
}

.map-header {
    text-align: center;
    padding: 80px 24px 40px 24px;
    max-width: 700px;
    margin: 0 auto;
}

.map-container {
    width: 100%;
    height: 500px;
    box-shadow: var(--shadow-md);
    position: relative;
    background-color: var(--color-secondary-dark);
}

.map-container iframe {
    width: 100%;
    height: 100%;
    border: 0;
}

/* --------------------------------------------------------------------------
   12. FAQ Section
   -------------------------------------------------------------------------- */
.faq-section {
    background-color: var(--color-secondary);
}

.faq-accordion-container {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    border-bottom: 1px solid var(--color-secondary-dark);
    padding: 8px 0;
}

.faq-question {
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    text-align: left;
    background: none;
    border: none;
    padding: 20px 8px;
    font-family: var(--font-headings);
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--color-primary);
    cursor: pointer;
    transition: var(--transition-fast);
}

.faq-question:hover {
    color: var(--color-primary-light);
}

.faq-icon {
    font-family: var(--font-body);
    font-size: 1.5rem;
    font-weight: 300;
    color: var(--color-primary-light);
    transition: transform 0.3s ease;
}

.faq-question[aria-expanded="true"] .faq-icon {
    transform: rotate(45deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition:
        max-height 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94),
        padding 0.4s ease;
    padding: 0 8px;
}

.faq-answer p {
    color: var(--color-text-muted);
    font-size: 0.95rem;
    line-height: 1.7;
    padding-bottom: 24px;
}

/* --------------------------------------------------------------------------
   13. Registration Section & Glassmorphic Form
   -------------------------------------------------------------------------- */
.register-section {
    background-image: url("assets/hero_townhouse.jpg");
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    position: relative;
    overflow: hidden;
}

.register-section::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        to bottom,
        rgba(47, 79, 79, 0.9) 0%,
        rgba(47, 79, 79, 0.8) 100%
    );
    z-index: 1;
}

.register-section .section-container {
    position: relative;
    z-index: 2;
    padding: 100px 24px;
}

.register-card {
    width: 100%;
    max-width: 900px;
    margin: 0 auto;
    background: rgba(30, 53, 47, 0.6);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--border-radius-lg);
    padding: 60px;
    box-shadow: var(--shadow-lg);
}

.register-header {
    text-align: center;
    margin-bottom: 50px;
}

.register-header .section-title {
    margin-bottom: 12px;
}

.registration-form {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.form-label {
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--color-secondary);
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

.required-star {
    color: var(--color-accent);
}

.form-control {
    background-color: rgba(253, 251, 247, 0.08);
    border: 1px solid rgba(253, 251, 247, 0.15);
    color: var(--color-white);
    padding: 14px 18px;
    border-radius: var(--border-radius-sm);
    font-size: 0.95rem;
    transition: var(--transition-smooth);
}

.form-control::placeholder {
    color: rgba(253, 251, 247, 0.4);
}

/* Custom Dropdown Option Styling */
.form-control select,
select.form-control {
    appearance: none;
    -webkit-appearance: none;
    background-image: url("data:image/svg+xml;utf8,<svg fill='white' height='24' viewBox='0 0 24 24' width='24' xmlns='http://www.w3.org/2000/svg'><path d='M7 10l5 5 5-5z'/><path d='M0 0h24v24H0z' fill='none'/></svg>");
    background-repeat: no-repeat;
    background-position: right 14px center;
    padding-right: 40px;
}

select.form-control option {
    background-color: var(--color-primary-light);
    color: var(--color-white);
}

.form-control:focus {
    outline: none;
    border-color: var(--color-accent);
    background-color: rgba(253, 251, 247, 0.15);
    box-shadow: 0 0 0 4px rgba(197, 168, 128, 0.25);
}

.form-control.invalid {
    border-color: var(--color-error);
    box-shadow: 0 0 0 4px rgba(213, 0, 0, 0.15);
}

.form-error-msg {
    display: none;
    font-size: 0.75rem;
    color: hsl(0, 85%, 70%);
    margin-top: 4px;
}

.form-error-msg.active {
    display: block;
}

/* Custom Checkbox */
.form-group-checkbox {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    position: relative;
}

.form-checkbox {
    width: 18px;
    height: 18px;
    accent-color: var(--color-accent);
    cursor: pointer;
    margin-top: 3px;
}

.checkbox-label {
    font-size: 0.85rem;
    color: var(--color-secondary-dark);
    line-height: 1.5;
    cursor: pointer;
    user-select: none;
}

/* Submit Section */
.form-submit-container {
    margin-top: 10px;
}

.btn-submit {
    width: 100%;
    background-color: var(--color-accent);
    color: var(--color-primary-dark);
    border-color: var(--color-accent);
    font-weight: 600;
    padding: 16px;
    font-size: 1.05rem;
    position: relative;
    overflow: hidden;
}

.btn-submit:hover {
    background-color: transparent;
    color: var(--color-accent);
    border-color: var(--color-accent);
}

.btn-submit:disabled {
    background-color: var(--color-text-muted);
    border-color: var(--color-text-muted);
    color: var(--color-secondary-dark);
    cursor: not-allowed;
}

/* Loading spinner */
.btn-spinner {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(30, 53, 47, 0.2);
    border-radius: 50%;
    border-top-color: var(--color-primary-dark);
    animation: spinLoader 0.8s linear infinite;
    vertical-align: middle;
}

@keyframes spinLoader {
    to {
        transform: rotate(360deg);
    }
}

/* Form Alerts */
.form-alert {
    padding: 20px;
    border-radius: var(--border-radius-sm);
    font-size: 0.95rem;
    margin-top: 20px;
    line-height: 1.5;
    animation: fadeInAlert 0.4s ease;
}

@keyframes fadeInAlert {
    from {
        opacity: 0;
        transform: translateY(-5px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.alert-success {
    background-color: rgba(76, 175, 80, 0.15);
    border: 1px solid var(--color-success);
    color: hsl(135, 60%, 75%);
}

.alert-error {
    background-color: rgba(244, 67, 54, 0.15);
    border: 1px solid var(--color-error);
    color: hsl(0, 85%, 75%);
}

/* --------------------------------------------------------------------------
   14. Footer
   -------------------------------------------------------------------------- */
.footer {
    background-color: var(--color-primary-dark);
    color: var(--color-secondary-dark);
    border-top: 1px solid rgba(253, 251, 247, 0.05);
}

.footer-container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 80px 24px 40px 24px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr 1fr;
    gap: 60px;
    margin-bottom: 60px;
}

.footer-brand {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.footer-logo-container {
    display: flex;
    align-items: center;
    gap: 12px;
}

.footer-logo-main {
    height: 64px;
    width: auto;
    object-fit: contain;
}

.footer-brand-name {
    font-family: var(--font-headings);
    font-size: 1.4rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    color: var(--color-white);
}

.footer-desc {
    font-size: 0.9rem;
    color: var(--color-text-muted);
    line-height: 1.7;
}

.project-location {
    display: flex;
    align-items: center;
    gap: 10px;
    background-color: rgba(253, 251, 247, 0.03);
    border: 1px solid rgba(253, 251, 247, 0.08);
    padding: 12px 16px;
    border-radius: var(--border-radius-sm);
    margin-top: 10px;
}

.location-icon {
    width: 20px;
    height: 20px;
    color: var(--color-accent);
    flex-shrink: 0;
}

.address-text {
    font-size: 0.85rem;
    color: var(--color-secondary);
}

.footer-socials {
    margin-top: 20px;
    display: flex;
    gap: 12px;
}

.social-icon-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 42px;
    height: 42px;
    border-radius: 50%;
    background-color: rgba(253, 251, 247, 0.03);
    border: 1px solid rgba(253, 251, 247, 0.08);
    color: var(--color-accent);
    transition: var(--transition-smooth);
}

.social-icon-link:hover {
    background-color: var(--color-accent);
    color: var(--color-primary-dark);
    border-color: var(--color-accent);
    transform: translateY(-3px);
    box-shadow: var(--shadow-sm);
}

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

.footer-links h4,
.footer-developer h4 {
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--color-white);
    margin-bottom: 24px;
    position: relative;
    padding-bottom: 10px;
}

.footer-links h4::after,
.footer-developer h4::after {
    content: "";
    position: absolute;
    bottom: 0;
    left: 0;
    width: 30px;
    height: 2px;
    background-color: var(--color-accent);
}

.footer-links ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-links ul a {
    font-size: 0.9rem;
    color: var(--color-text-muted);
}

.footer-links ul a:hover {
    color: var(--color-accent);
    padding-left: 4px;
}

.developer-card-footer {
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.footer-logo-dev {
    height: 40px;
    width: auto;
    align-self: flex-start;
    object-fit: contain;
}

.developer-card-footer p {
    font-size: 0.9rem;
    color: var(--color-text-muted);
    line-height: 1.6;
}

.footer-bottom {
    border-top: 1px solid rgba(253, 251, 247, 0.05);
    padding-top: 30px;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.copyright {
    font-size: 0.85rem;
    color: var(--color-text-muted);
}

.copyright a:hover {
    color: var(--color-accent);
}

.disclaimer {
    font-size: 0.75rem;
    color: var(--color-text-muted);
    opacity: 0.6;
    line-height: 1.6;
}

/* --------------------------------------------------------------------------
   15. Responsive Adaptations (Media Queries)
   -------------------------------------------------------------------------- */

/* Desktop & Large Screen Hover Adjustments */
@media (min-width: 1025px) {
    /* Navigation smooth interactions */
    .desktop-nav {
        display: flex;
    }
}

/* Tablet Layout (Max-width: 1024px) */
@media (max-width: 1024px) {
    :root {
        --header-height: 70px;
    }

    .section-container {
        padding: 60px 24px;
    }

    .hero-title {
        font-size: 3rem;
    }

    .about-grid {
        gap: 40px;
    }

    .features-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 24px;
    }

    .gallery-item {
        height: 280px;
    }

    .gallery-item.item-large {
        height: 400px;
    }

    .tab-grid {
        grid-template-columns: 1fr;
        gap: 30px;
    }

    .tab-stats {
        flex-direction: row;
        justify-content: space-between;
    }

    .stat-box {
        flex: 1;
    }

    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 40px;
    }

    .footer-developer {
        grid-column: span 2;
    }
}

/* Mobile Screen Layouts (Max-width: 767px) */
@media (max-width: 767px) {
    :root {
        --header-height: 60px;
    }

    .section-title {
        font-size: 2rem;
    }

    .hero-title {
        font-size: 2.25rem;
    }

    .hero-description {
        font-size: 1.05rem;
    }

    /* Hamburger Navigation Menu */
    .desktop-nav {
        display: none;
    }

    .mobile-menu-toggle {
        display: block;
    }

    .mobile-menu-toggle.open .bar:nth-child(1) {
        transform: translateY(7px) rotate(45deg);
    }

    .mobile-menu-toggle.open .bar:nth-child(2) {
        opacity: 0;
    }

    .mobile-menu-toggle.open .bar:nth-child(3) {
        transform: translateY(-7px) rotate(-45deg);
    }

    .mobile-nav {
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: center;
        position: fixed;
        top: var(--header-height);
        left: 0;
        width: 100%;
        height: calc(100vh - var(--header-height));
        background-color: var(--color-secondary);
        z-index: 999;
        gap: 30px;
        padding: 40px;
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition:
            transform 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94),
            opacity 0.4s ease;
    }

    .mobile-nav.open {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }

    .mobile-nav-link {
        font-size: 1.25rem;
        font-family: var(--font-headings);
        font-weight: 600;
        color: var(--color-primary);
    }

    .mobile-nav-btn {
        background-color: var(--color-primary);
        color: var(--color-white);
        padding: 14px 40px;
        border-radius: var(--border-radius-sm);
        font-family: var(--font-body);
        font-size: 1rem;
    }

    /* Section Grids */
    .about-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .about-text-container {
        order: 2;
    }

    .about-image-container {
        order: 1;
    }

    .experience-card {
        bottom: -15px;
        left: 15px;
        padding: 16px 20px;
    }

    .experience-num {
        font-size: 2.25rem;
    }

    .gallery-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .gallery-item,
    .gallery-item.item-large {
        grid-column: span 1;
        height: 260px;
    }

    .features-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .tab-headers {
        flex-direction: column;
        align-items: stretch;
        gap: 4px;
        margin-bottom: 24px;
    }

    .tab-header {
        padding: 12px 16px;
        text-align: center;
        border-bottom: 1px solid var(--color-secondary-dark);
    }

    .tab-header::after {
        display: none;
    }

    .tab-header.active {
        background-color: var(--color-secondary-dark);
        border-radius: var(--border-radius-sm);
    }

    .tab-stats {
        flex-direction: column;
        gap: 16px;
    }

    .map-container {
        height: 350px;
    }

    /* Form */
    .register-card {
        padding: 30px 20px;
    }

    .form-row {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    /* Footer */
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .footer-developer {
        grid-column: span 1;
    }
}