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

:root {
    /* Angola Flag Colors */
    --red: #CC092F;
    --black: #000000;
    --yellow: #FFCE00;
    --white: #FFFFFF;
    
    /* Additional Colors */
    --dark-red: #A00726;
    --light-yellow: #FFF4B3;
    --gray: #6B7280;
    --light-gray: #F3F4F6;
    --dark-gray: #374151;
    
    /* Typography */
    --font-family: 'Inter', sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 1.875rem;
    --font-size-4xl: 2.25rem;
    --font-size-5xl: 3rem;
    
    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    --spacing-3xl: 4rem;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    
    /* Transitions */
    --transition: all 0.3s ease;
}

body {
    font-family: var(--font-family);
    line-height: 1.6;
    color: var(--dark-gray);
    background-color: var(--white);
    overflow-x: hidden;
}

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

/* Header Styles */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    border-bottom: 1px solid rgba(0, 0, 0, 0.1);
}

.navbar {
    padding: var(--spacing-md) 0;
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

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

.flag-icon {
    width: 40px;
    height: 30px;
    border-radius: 4px;
}

.hero-logo {
    position: absolute;
    top: 20px;
    right: 20px;
    width: 80px;
    height: 60px;
    border-radius: 8px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.3);
    animation: float 3s ease-in-out infinite;
}

@keyframes float {
    0%, 100% {
        transform: translateY(0px);
    }
    50% {
        transform: translateY(-10px);
    }
}

.logo-text {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--red);
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: var(--spacing-xl);
}

.nav-link {
    text-decoration: none;
    color: var(--dark-gray);
    font-weight: 500;
    transition: var(--transition);
    position: relative;
}

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

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--red);
    transition: var(--transition);
}

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

.language-switcher {
    display: flex;
    gap: var(--spacing-xs);
}

.lang-btn {
    padding: var(--spacing-xs) var(--spacing-sm);
    border: 1px solid var(--gray);
    background: transparent;
    color: var(--gray);
    cursor: pointer;
    transition: var(--transition);
    border-radius: 4px;
    font-size: var(--font-size-sm);
}

.lang-btn.active,
.lang-btn:hover {
    background: var(--red);
    color: var(--white);
    border-color: var(--red);
}

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 4px;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background: var(--dark-gray);
    transition: var(--transition);
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    background: linear-gradient(135deg, var(--red) 0%, var(--dark-red) 100%);
    overflow: hidden;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grain" width="100" height="100" patternUnits="userSpaceOnUse"><circle cx="25" cy="25" r="1" fill="%23ffffff" opacity="0.1"/><circle cx="75" cy="75" r="1" fill="%23ffffff" opacity="0.1"/><circle cx="50" cy="10" r="1" fill="%23ffffff" opacity="0.1"/><circle cx="10" cy="60" r="1" fill="%23ffffff" opacity="0.1"/><circle cx="90" cy="40" r="1" fill="%23ffffff" opacity="0.1"/></pattern></defs><rect width="100" height="100" fill="url(%23grain)"/></svg>');
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.3);
}

.hero-content {
    position: relative;
    z-index: 2;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-3xl);
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.hero-text {
    color: var(--white);
}

.hero-title {
    font-size: var(--font-size-5xl);
    font-weight: 700;
    margin-bottom: var(--spacing-lg);
    line-height: 1.2;
}

.hero-subtitle {
    font-size: var(--font-size-xl);
    margin-bottom: var(--spacing-2xl);
    opacity: 0.9;
}

.hero-buttons {
    display: flex;
    gap: var(--spacing-lg);
    flex-wrap: wrap;
}

.hero-image {
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero-map {
    max-width: 100%;
    height: auto;
    filter: drop-shadow(0 10px 20px rgba(0, 0, 0, 0.3));
}

/* Button Styles */
.btn {
    padding: var(--spacing-md) var(--spacing-xl);
    border: none;
    border-radius: 8px;
    font-size: var(--font-size-base);
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
    display: inline-block;
    text-align: center;
}

.btn-primary {
    background: var(--yellow);
    color: var(--black);
}

.btn-primary:hover {
    background: var(--light-yellow);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

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

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

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

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

/* Section Styles */
section {
    padding: var(--spacing-3xl) 0;
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-3xl);
}

.section-logo {
    margin-bottom: var(--spacing-md);
}

.section-logo-img {
    width: 50px;
    height: 37px;
    border-radius: 4px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

.section-title {
    font-size: var(--font-size-4xl);
    font-weight: 700;
    color: var(--red);
    margin-bottom: var(--spacing-md);
}

.section-subtitle {
    font-size: var(--font-size-lg);
    color: var(--gray);
    max-width: 600px;
    margin: 0 auto;
}

/* Timeline Section */
.timeline-section {
    background: var(--light-gray);
}

.timeline {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 50%;
    top: 0;
    bottom: 0;
    width: 4px;
    background: var(--red);
    transform: translateX(-50%);
}

.timeline-item {
    position: relative;
    margin-bottom: var(--spacing-2xl);
    width: 50%;
}

.timeline-item:nth-child(odd) {
    left: 0;
    padding-right: var(--spacing-xl);
    text-align: right;
}

.timeline-item:nth-child(even) {
    left: 50%;
    padding-left: var(--spacing-xl);
}

.timeline-year {
    position: absolute;
    top: 0;
    width: 80px;
    height: 80px;
    background: var(--yellow);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-lg);
    font-weight: 700;
    color: var(--black);
    border: 4px solid var(--white);
    box-shadow: var(--shadow-md);
}

.timeline-item:nth-child(odd) .timeline-year {
    right: -40px;
}

.timeline-item:nth-child(even) .timeline-year {
    left: -40px;
}

.timeline-content {
    background: var(--white);
    padding: var(--spacing-xl);
    border-radius: 12px;
    box-shadow: var(--shadow-md);
    position: relative;
}

.timeline-content h3 {
    font-size: var(--font-size-xl);
    font-weight: 600;
    color: var(--red);
    margin-bottom: var(--spacing-sm);
}

.timeline-content p {
    color: var(--gray);
    line-height: 1.6;
}

/* Culture Section */
.culture-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-xl);
}

.culture-card {
    background: var(--white);
    padding: var(--spacing-xl);
    border-radius: 12px;
    text-align: center;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
}

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

.culture-icon {
    width: 80px;
    height: 80px;
    background: var(--red);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--spacing-lg);
}

.culture-icon i {
    font-size: var(--font-size-2xl);
    color: var(--white);
}

.culture-card h3 {
    font-size: var(--font-size-xl);
    font-weight: 600;
    color: var(--red);
    margin-bottom: var(--spacing-sm);
}

.culture-card p {
    color: var(--gray);
    margin-bottom: var(--spacing-lg);
}

/* Tributes Section */
.tributes-section {
    background: var(--light-gray);
}

.tributes-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-3xl);
    align-items: start;
}

.tribute-form {
    background: var(--white);
    padding: var(--spacing-xl);
    border-radius: 12px;
    box-shadow: var(--shadow-md);
}

.form-group {
    margin-bottom: var(--spacing-lg);
}

.form-group label {
    display: block;
    margin-bottom: var(--spacing-sm);
    font-weight: 600;
    color: var(--dark-gray);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: var(--spacing-md);
    border: 2px solid #E5E7EB;
    border-radius: 8px;
    font-size: var(--font-size-base);
    transition: var(--transition);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--red);
    box-shadow: 0 0 0 3px rgba(204, 9, 47, 0.1);
}

.tributes-wall {
    background: var(--white);
    padding: var(--spacing-xl);
    border-radius: 12px;
    box-shadow: var(--shadow-md);
}

.tributes-wall h3 {
    font-size: var(--font-size-xl);
    font-weight: 600;
    color: var(--red);
    margin-bottom: var(--spacing-lg);
}

.tributes-list {
    max-height: 400px;
    overflow-y: auto;
}

.tribute-item {
    background: var(--light-gray);
    padding: var(--spacing-md);
    border-radius: 8px;
    margin-bottom: var(--spacing-md);
    border-left: 4px solid var(--red);
}

.tribute-author {
    font-weight: 600;
    color: var(--red);
    margin-bottom: var(--spacing-xs);
}

.tribute-province {
    font-size: var(--font-size-sm);
    color: var(--gray);
    margin-bottom: var(--spacing-sm);
}

.tribute-message {
    color: var(--dark-gray);
    line-height: 1.5;
}

/* Events Section */
.events-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-xl);
}

.event-card {
    background: var(--white);
    padding: var(--spacing-xl);
    border-radius: 12px;
    box-shadow: var(--shadow-md);
    display: flex;
    gap: var(--spacing-lg);
    transition: var(--transition);
}

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

.event-date {
    background: var(--red);
    color: var(--white);
    padding: var(--spacing-md);
    border-radius: 8px;
    text-align: center;
    min-width: 80px;
    height: fit-content;
}

.event-date .day {
    display: block;
    font-size: var(--font-size-2xl);
    font-weight: 700;
    line-height: 1;
}

.event-date .month {
    display: block;
    font-size: var(--font-size-sm);
    font-weight: 600;
    margin-top: var(--spacing-xs);
}

.event-content h3 {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--red);
    margin-bottom: var(--spacing-sm);
}

.event-location {
    color: var(--gray);
    font-size: var(--font-size-sm);
    margin-bottom: var(--spacing-xs);
}

.event-time {
    color: var(--red);
    font-weight: 600;
    font-size: var(--font-size-sm);
}

/* Education Section */
.education-section {
    background: var(--light-gray);
}

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

.edu-card {
    background: var(--white);
    padding: var(--spacing-xl);
    border-radius: 12px;
    text-align: center;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
}

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

.edu-icon {
    width: 80px;
    height: 80px;
    background: var(--yellow);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--spacing-lg);
}

.edu-icon i {
    font-size: var(--font-size-2xl);
    color: var(--black);
}

.edu-card h3 {
    font-size: var(--font-size-xl);
    font-weight: 600;
    color: var(--red);
    margin-bottom: var(--spacing-sm);
}

.edu-card p {
    color: var(--gray);
    margin-bottom: var(--spacing-lg);
}

/* Map Section */
.map-container {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: var(--spacing-xl);
    align-items: start;
}

.map-wrapper {
    background: var(--white);
    padding: var(--spacing-xl);
    border-radius: 12px;
    box-shadow: var(--shadow-md);
}

.angola-map {
    width: 100%;
    height: 400px;
}

.province {
    fill: var(--light-gray);
    stroke: var(--white);
    stroke-width: 2;
    cursor: pointer;
    transition: var(--transition);
}

.province:hover {
    fill: var(--red);
    stroke: var(--yellow);
}

.map-info {
    background: var(--white);
    padding: var(--spacing-xl);
    border-radius: 12px;
    box-shadow: var(--shadow-md);
}

.map-info h3 {
    font-size: var(--font-size-xl);
    font-weight: 600;
    color: var(--red);
    margin-bottom: var(--spacing-md);
}

.map-info p {
    color: var(--gray);
    line-height: 1.6;
}

/* Footer */
.footer {
    background: var(--black);
    color: var(--white);
    padding: var(--spacing-3xl) 0 var(--spacing-xl);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

.footer-logo {
    margin-bottom: var(--spacing-md);
}

.footer-logo-img {
    width: 60px;
    height: 45px;
    border-radius: 6px;
}

.footer-section h3,
.footer-section h4 {
    margin-bottom: var(--spacing-lg);
    color: var(--yellow);
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin-bottom: var(--spacing-sm);
}

.footer-section ul li a {
    color: var(--white);
    text-decoration: none;
    transition: var(--transition);
}

.footer-section ul li a:hover {
    color: var(--yellow);
}

.social-links {
    display: flex;
    gap: var(--spacing-md);
}

.social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: var(--red);
    color: var(--white);
    border-radius: 50%;
    text-decoration: none;
    transition: var(--transition);
}

.social-link:hover {
    background: var(--yellow);
    color: var(--black);
    transform: translateY(-2px);
}

.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-xl);
    border-top: 1px solid #374151;
    color: var(--gray);
}

/* Modal Styles */
.modal {
    display: none;
    position: fixed;
    z-index: 2000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(5px);
}

.modal-content {
    background-color: var(--white);
    margin: 5% auto;
    padding: var(--spacing-xl);
    border-radius: 12px;
    width: 90%;
    max-width: 600px;
    position: relative;
    box-shadow: var(--shadow-xl);
}

.close {
    color: var(--gray);
    float: right;
    font-size: var(--font-size-2xl);
    font-weight: bold;
    cursor: pointer;
    position: absolute;
    top: var(--spacing-md);
    right: var(--spacing-lg);
}

.close:hover {
    color: var(--red);
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 80px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 80px);
        background: var(--white);
        flex-direction: column;
        justify-content: flex-start;
        align-items: center;
        padding-top: var(--spacing-xl);
        transition: var(--transition);
        box-shadow: var(--shadow-lg);
    }

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

    .hamburger {
        display: flex;
    }

    .hamburger.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }

    .hamburger.active span:nth-child(2) {
        opacity: 0;
    }

    .hamburger.active span:nth-child(3) {
        transform: rotate(-45deg) translate(7px, -6px);
    }

    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero-title {
        font-size: var(--font-size-4xl);
    }

    .hero-buttons {
        justify-content: center;
    }

    .timeline::before {
        left: 30px;
    }

    .timeline-item {
        width: 100%;
        left: 0 !important;
        padding-left: 60px !important;
        padding-right: 0 !important;
        text-align: left !important;
    }

    .timeline-year {
        left: -40px !important;
        right: auto !important;
    }

    .tributes-content {
        grid-template-columns: 1fr;
    }

    .map-container {
        grid-template-columns: 1fr;
    }

    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .social-links {
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 var(--spacing-sm);
    }

    .hero-title {
        font-size: var(--font-size-3xl);
    }

    .section-title {
        font-size: var(--font-size-3xl);
    }

    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }

    .btn {
        width: 100%;
        max-width: 300px;
    }
}

/* Accessibility */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* High contrast mode */
@media (prefers-contrast: high) {
    :root {
        --red: #CC0000;
        --yellow: #FFD700;
        --black: #000000;
        --white: #FFFFFF;
    }
}

/* Print styles */
@media print {
    .header,
    .footer,
    .btn,
    .modal {
        display: none !important;
    }

    body {
        font-size: 12pt;
        line-height: 1.4;
    }

    .section-title {
        color: black !important;
        font-size: 18pt;
    }
}