/* ======= DESIGN TOKENS ======= */
:root {
    /* Lao Flag Inspired Colors */
    --c-red: #CE1126;
    --c-red-dark: #A50D1E;
    --c-blue: #002868;
    --c-blue-dark: #001A45;
    --c-gold: #F9A01B;
    --c-gold-dark: #D48612;

    /* Neutrals */
    --c-white: #FFFFFF;
    --c-light-bg: #F7F9FC;
    --c-text-main: #1A1F2B;
    --c-text-muted: #64748B;
    --c-border: #E2E8F0;

    /* Typography */
    --font-primary: 'Inter', -apple-system, sans-serif;
    --font-lao: 'Noto Sans Lao', var(--font-primary);

    /* Variables mapping */
    --primary: var(--c-blue);
    --primary-hover: var(--c-blue-dark);
    --secondary: var(--c-red);
    --secondary-hover: var(--c-red-dark);
    --accent: var(--c-red);
    --accent-hover: var(--c-red-dark);

    /* Effects */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-glow: 0 0 15px rgba(206, 17, 38, 0.5);
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-primary);
    color: var(--c-text-main);
    background-color: var(--c-light-bg);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

body.font-lao {
    font-family: var(--font-lao);
}

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

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

ul {
    list-style: none;
}

.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
}

.section-padding {
    padding: 5rem 0;
}

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

.text-white,
.text-white h1,
.text-white h2,
.text-white h3,
.text-white h4,
.text-white p {
    color: var(--c-white);
}

.text-accent {
    color: var(--accent);
}

.text-light-gray {
    color: #CBD5E1;
}

.bg-light {
    background-color: var(--c-white);
}

.bg-primary {
    background-color: var(--primary);
}

.mt-2 {
    margin-top: 0.5rem;
}

.mt-3 {
    margin-top: 1rem;
}

.hidden {
    display: none !important;
}

/* SPA Display Logic */
.page-view {
    display: none;
    animation: fadeIn 0.4s ease-out;
}

.page-view.active {
    display: block;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }

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

/* Typography elements */
h1,
h2,
h3,
h4 {
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1rem;
    color: var(--c-text-main);
}

h2 {
    font-size: 2.5rem;
}

h3 {
    font-size: 1.5rem;
}

p {
    margin-bottom: 1rem;
}

.lead-text {
    font-size: 1.25rem;
    color: var(--c-text-muted);
}

/* ======= NAVIGATION ======= */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background-color: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    z-index: 1000;
    transition: all var(--transition);
    border-bottom: 1px solid transparent;
}

.navbar.scrolled {
    box-shadow: var(--shadow-sm);
    border-bottom: 1px solid var(--c-border);
    background-color: rgba(255, 255, 255, 0.98);
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 5%;
    max-width: 1400px;
    margin: 0 auto;
}

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

.logo-img {
    height: 48px;
    width: auto;
    border-radius: 50%;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    background: var(--c-white);
}

.logo-text {
    font-size: 1.75rem;
    font-weight: 800;
    color: var(--primary);
    letter-spacing: -1px;
}

.nav-links {
    display: flex;
    gap: 2rem;
    align-items: center;
}

.nav-links a {
    color: var(--c-text-muted);
    font-weight: 500;
    font-size: 1.05rem;
    position: relative;
}

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

.nav-links a::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: -4px;
    left: 0;
    background-color: var(--secondary);
    transition: width var(--transition);
}

.nav-links a:hover::after {
    width: 100%;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 3rem;
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.lang-switcher {
    display: flex;
    background: var(--c-light-bg);
    border-radius: var(--radius-sm);
    padding: 4px;
}

.lang-btn {
    border: none;
    background: none;
    padding: 6px 10px;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--c-text-muted);
    cursor: pointer;
    border-radius: 4px;
    transition: all var(--transition);
}

.lang-btn.active {
    background: var(--c-white);
    color: var(--primary);
    box-shadow: var(--shadow-sm);
}

.mobile-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--primary);
    cursor: pointer;
}

/* ======= BUTTONS ======= */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius-md);
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition);
    border: 2px solid transparent;
}

.btn-large {
    padding: 1rem 2rem;
    font-size: 1.1rem;
}

.btn-full {
    width: 100%;
}

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

.btn-primary:hover {
    background-color: var(--primary-hover);
    color: var(--c-white);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

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

.btn-secondary:hover {
    background-color: var(--secondary-hover);
    color: var(--c-white);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-donate {
    background-color: var(--accent);
    color: var(--c-white);
    box-shadow: var(--shadow-glow);
}

.btn-donate:hover {
    background-color: var(--accent-hover);
    transform: translateY(-2px);
    box-shadow: 0 0 20px rgba(206, 17, 38, 0.7);
}

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

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

/* Link Arrow styling */
.link-arrow {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 600;
}

.link-arrow i {
    transition: transform 0.2s;
}

.link-arrow:hover i {
    transform: translateX(4px);
}

/* ======= HERO SECTION ======= */
.hero {
    margin-top: 70px;
    position: relative;
    min-height: 85vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: url('https://images.unsplash.com/photo-1549468057-5ce7af8ea1c1?ixlib=rb-4.0.3&auto=format&fit=crop&w=1920&q=80') center/cover no-repeat;
}

.hero-overlay {
    position: absolute;
    inset: 0;
    /* Gradient overlay using Lao colors subtly */
    background: linear-gradient(135deg, rgba(0, 40, 104, 0.85) 0%, rgba(206, 17, 38, 0.6) 100%);
}

.hero-content {
    position: relative;
    z-index: 10;
    color: var(--c-white);
    text-align: center;
    max-width: 800px;
    padding: 0 20px;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.hero-logo {
    width: 220px;
    height: auto;
    margin-bottom: 2rem;
    border-radius: 50%;
    filter: drop-shadow(0 0 30px rgba(255, 255, 255, 0.4)) drop-shadow(0 10px 15px rgba(0, 0, 0, 0.3));
    animation: scaleIn 0.8s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

@keyframes scaleIn {
    0% {
        opacity: 0;
        transform: scale(0.8) translateY(-20px);
    }

    100% {
        opacity: 1;
        transform: scale(1) translateY(0);
    }
}

.cultural-accent {
    display: inline-block;
    padding: 0.5rem 1rem;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(4px);
    border-radius: var(--radius-lg);
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: var(--accent);
    font-weight: 700;
    font-size: 0.9rem;
    letter-spacing: 2px;
    margin-bottom: 1.5rem;
}

.hero h1 {
    font-size: 4rem;
    color: var(--c-white);
    margin-bottom: 1.5rem;
}

.hero p {
    font-size: 1.25rem;
    margin-bottom: 2.5rem;
    color: rgba(255, 255, 255, 0.9);
}

.hero-ctas {
    display: flex;
    gap: 1.5rem;
    justify-content: center;
}

/* ======= STATS ======= */
.stats-section {
    background: var(--c-white);
    padding: 3rem 0;
    border-bottom: 1px solid var(--c-border);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    text-align: center;
}

.stat-number {
    font-size: 3.5rem;
    color: var(--secondary);
    margin-bottom: 0.5rem;
}

.stat-item p {
    font-weight: 600;
    color: var(--c-text-muted);
    font-size: 1.1rem;
}

/* ======= SECTIONS HEADER ======= */
.section-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    margin-bottom: 3rem;
}

/* ======= EVENT CARDS ======= */
.events-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
}

.event-card {
    background: var(--c-white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: transform var(--transition), box-shadow var(--transition);
    border: 1px solid var(--c-border);
    display: flex;
    flex-direction: column;
}

.event-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.event-image {
    height: 200px;
    background-color: #E2E8F0;
    position: relative;
}

.event-image::before {
    content: '';
    position: absolute;
    inset: 0;
    background-size: cover;
    background-position: center;
    opacity: 0.8;
}

/* Placeholder specific styling for demo */
.event-card:nth-child(1) .event-image {
    background: url('../images/culture-pi mai.jpg') center/cover;
}

.event-card:nth-child(2) .event-image {
    background: url('../images/culture-dance.jpg') center/cover;
}

.event-card:nth-child(3) .event-image {
    background: url('https://images.unsplash.com/photo-1511795409834-ef04bbd61622?auto=format&fit=crop&w=600&q=80') center/cover;
}

.event-date {
    position: absolute;
    top: 15px;
    right: 15px;
    background: var(--c-white);
    padding: 0.5rem;
    border-radius: var(--radius-sm);
    text-align: center;
    box-shadow: var(--shadow-sm);
    min-width: 60px;
}

.event-date .day {
    display: block;
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--secondary);
    line-height: 1;
}

.event-date .month {
    font-size: 0.85rem;
    font-weight: 600;
    text-transform: uppercase;
}

.event-details {
    padding: 2rem;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.event-type {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    background: rgba(0, 40, 104, 0.1);
    color: var(--primary);
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
    margin-bottom: 1rem;
    width: fit-content;
}

.event-details h3 {
    margin-bottom: 1rem;
}

.event-meta {
    color: var(--c-text-muted);
    font-size: 0.95rem;
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.event-details .btn {
    margin-top: auto;
}

/* ======= CULTURE SHOWCASE ======= */
.gallery-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    grid-template-rows: repeat(2, 250px);
    gap: 1.5rem;
}

.gallery-item {
    position: relative;
    border-radius: var(--radius-lg);
    overflow: hidden;
    background-color: var(--primary);
    display: flex;
    align-items: flex-end;
    padding: 1.5rem;
    color: var(--c-white);
    font-weight: 600;
    font-size: 1.25rem;
}

.gallery-item::before {
    content: '';
    position: absolute;
    inset: 0;
    background-size: cover;
    background-position: center;
    transition: transform 0.5s ease;
}

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

.gallery-item::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.8), transparent 60%);
}

.gallery-item span {
    position: relative;
    z-index: 10;
}

.gallery-item.large {
    grid-column: span 2;
    grid-row: span 2;
}

.gallery-item.wide {
    grid-column: span 2;
}

.gallery-item:nth-child(1)::before {
    background-image: url('../images/culture-temple.jpg');
}

.gallery-item:nth-child(2)::before {
    background-image: url('../images/culture-food.jpg');
}

.gallery-item:nth-child(3)::before {
    background-image: url('../images/culture-dance2.jpg');
}

.gallery-item:nth-child(4)::before {
    background-image: url('../images/culture-festival.jpg');
}


/* ======= INVOLVE CARDS ======= */
.involved-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.involved-card {
    background: var(--c-white);
    padding: 3rem 2rem;
    border-radius: var(--radius-lg);
    text-align: center;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition);
    border: 1px solid var(--c-border);
}

.involved-card.highlighted {
    border-color: var(--c-gold);
    box-shadow: 0 10px 30px rgba(249, 160, 27, 0.15);
    background: linear-gradient(to bottom, var(--c-white), #FFFDF8);
}

.involved-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
}

.icon-circle {
    width: 80px;
    height: 80px;
    background: rgba(0, 40, 104, 0.05);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    font-size: 2rem;
    color: var(--primary);
}

.highlighted .icon-circle {
    background: rgba(249, 160, 27, 0.1);
    color: var(--c-gold);
}

/* ======= FORMS ======= */
.custom-form {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    text-align: left;
}

.form-group label {
    font-weight: 600;
    color: var(--c-text-main);
}

.form-group input,
.form-group select {
    padding: 0.8rem 1rem;
    border: 1px solid var(--c-border);
    border-radius: var(--radius-sm);
    font-family: inherit;
    font-size: 1rem;
    transition: border-color 0.2s;
    background-color: #F8FAFC;
}

.form-group input:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--primary);
    background-color: var(--c-white);
}

/* ======= DONATE PAGE ======= */
.page-header {
    margin-top: 70px;
    padding: 6rem 0 4rem;
    background: var(--primary);
    color: var(--c-white);
    text-align: center;
}

.donate-header {
    background: linear-gradient(135deg, var(--c-blue-dark), var(--primary));
}

.page-header h1 {
    color: var(--c-white);
    font-size: 3rem;
}

.page-header p {
    font-size: 1.25rem;
    opacity: 0.9;
    max-width: 600px;
    margin: 0 auto;
}

.donate-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: start;
}

.impact-list {
    margin-top: 2rem;
}

.impact-list li {
    display: flex;
    gap: 1rem;
    margin-bottom: 2rem;
}

.impact-list i {
    font-size: 1.5rem;
    margin-top: 0.2rem;
}

.trust-signals {
    margin-top: 3rem;
    padding-top: 2rem;
    border-top: 1px solid var(--c-border);
    color: var(--c-text-muted);
}

.trust-signals p {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 0.5rem;
}

.donate-form-card {
    background: var(--c-white);
    padding: 3rem;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    border-top: 4px solid var(--accent);
}

.amount-selector {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
}

.amount-btn {
    display: block;
    position: relative;
    cursor: pointer;
}

.amount-btn input {
    position: absolute;
    opacity: 0;
    cursor: pointer;
}

.amount-btn span {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1rem;
    border: 2px solid var(--c-border);
    border-radius: var(--radius-sm);
    font-weight: 700;
    font-size: 1.25rem;
    transition: all 0.2s;
    color: var(--c-text-muted);
}

.amount-btn input:checked~span {
    border-color: var(--primary);
    background-color: rgba(0, 40, 104, 0.05);
    color: var(--primary);
}

.amount-btn.custom-amount {
    grid-column: span 3;
}

/* ======= MISC COMPONENTS ======= */
.card {
    background: var(--c-white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
}

.card-padded {
    padding: 3rem;
}

.filters {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 3rem;
}

.filter-btn {
    padding: 0.5rem 1.5rem;
    border: 2px solid var(--c-border);
    background: transparent;
    border-radius: 20px;
    cursor: pointer;
    font-weight: 600;
    color: var(--c-text-muted);
    transition: all 0.2s;
}

.filter-btn.active,
.filter-btn:hover {
    border-color: var(--primary);
    background: var(--primary);
    color: var(--c-white);
}

/* ======= FOOTER ======= */
.newsletter-section {
    padding: 4rem 0;
}

.newsletter-form {
    display: flex;
    gap: 1rem;
    max-width: 500px;
    margin: 2rem auto 0;
}

.newsletter-form input {
    flex: 1;
    padding: 1rem;
    border: none;
    border-radius: var(--radius-sm);
    font-family: inherit;
}

.footer {
    background-color: var(--c-text-main);
    color: var(--c-white);
    padding: 5rem 0 2rem;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 4rem;
    margin-bottom: 3rem;
}

.footer h4 {
    color: var(--c-white);
    margin-bottom: 1.5rem;
}

.footer-links ul {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.footer-links a {
    color: var(--c-text-muted);
}

.footer-links a:hover {
    color: var(--c-white);
}

.footer-contact p {
    color: var(--c-text-muted);
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 1rem;
}

.social-links {
    display: flex;
    gap: 1rem;
}

.social-links a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    color: var(--c-white);
    transition: background 0.2s;
}

.social-links a:hover {
    background: var(--primary);
}

.footer-bottom {
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--c-text-muted);
    font-size: 0.9rem;
}

/* Fix footer text alignment */
.footer-brand .logo {
    margin-bottom: 1rem;
}

.footer-brand .logo-text {
    margin: 0;
}

.footer-logo .logo-img {
    background: var(--c-white);
}

/* ======= RESPONSIVE ======= */
@media (max-width: 992px) {
    .stats-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .gallery-grid {
        grid-template-columns: repeat(2, 1fr);
        grid-template-rows: repeat(3, 200px);
    }

    .gallery-item.large {
        grid-column: span 2;
        grid-row: span 1;
    }

    .gallery-item.wide {
        grid-column: span 2;
    }

    .hero h1 {
        font-size: 3rem;
    }
}

@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 70px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 70px);
        background: var(--c-white);
        flex-direction: column;
        justify-content: flex-start;
        padding-top: 2rem;
        transition: left 0.3s;
    }

    .nav-menu.active {
        left: 0;
    }

    .nav-links {
        flex-direction: column;
        gap: 1.5rem;
        text-align: center;
    }

    .nav-actions {
        flex-direction: column;
        width: 80%;
        margin-top: 2rem;
    }

    .mobile-toggle {
        display: block;
    }

    .stats-grid,
    .involved-grid,
    .donate-grid,
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .hero h1 {
        font-size: 2.5rem;
    }

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

    .section-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 1rem;
    }

    .newsletter-form {
        flex-direction: column;
    }
}