/* ============================================
   DMZ Foundation - Stylesheet
   ============================================ */

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

:root {
    --primary: #1a5276;
    --primary-dark: #0e3a56;
    --primary-light: #2980b9;
    --secondary: #27ae60;
    --secondary-dark: #1e8449;
    --accent: #e67e22;
    --text: #2c3e50;
    --text-light: #7f8c8d;
    --bg: #ffffff;
    --bg-alt: #f8f9fa;
    --bg-dark: #1a1a2e;
    --border: #e0e0e0;
    --shadow: 0 2px 15px rgba(0,0,0,0.08);
    --shadow-lg: 0 10px 40px rgba(0,0,0,0.12);
    --radius: 8px;
    --transition: 0.3s ease;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    color: var(--text);
    line-height: 1.6;
    background: var(--bg);
}

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

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

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

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* ============================================
   Navigation
   ============================================ */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255,255,255,0.95);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow);
    transition: background var(--transition), box-shadow var(--transition);
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 20px;
}

.nav-logo {
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--primary);
    letter-spacing: -0.5px;
}

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

.nav-menu {
    display: flex;
    list-style: none;
    gap: 30px;
}

.nav-link {
    color: var(--text);
    font-weight: 500;
    font-size: 0.95rem;
    position: relative;
    padding: 5px 0;
}

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

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

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

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

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

.hero-overlay {
    position: absolute;
    inset: 0;
    background: url('https://images.unsplash.com/photo-1522071820081-009f0129c71c?w=1600&q=80') center/cover no-repeat;
    opacity: 0.15;
}

.hero-content {
    position: relative;
    text-align: center;
    color: #fff;
    padding: 120px 20px 80px;
}

.hero-content h1 {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 20px;
    letter-spacing: -1px;
    line-height: 1.15;
}

.hero-content p {
    font-size: 1.25rem;
    opacity: 0.9;
    max-width: 650px;
    margin: 0 auto 40px;
    line-height: 1.7;
}

.hero-buttons {
    display: flex;
    gap: 15px;
    justify-content: center;
    flex-wrap: wrap;
}

/* ============================================
   Buttons
   ============================================ */
.btn {
    display: inline-block;
    padding: 14px 32px;
    border-radius: var(--radius);
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: all var(--transition);
    border: 2px solid transparent;
    text-align: center;
}

.btn-primary {
    background: var(--secondary);
    color: #fff;
    border-color: var(--secondary);
}

.btn-primary:hover {
    background: var(--secondary-dark);
    border-color: var(--secondary-dark);
    color: #fff;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(39,174,96,0.3);
}

.btn-outline {
    background: transparent;
    color: #fff;
    border-color: #fff;
}

.btn-outline:hover {
    background: #fff;
    color: var(--primary);
    transform: translateY(-2px);
}

.btn-secondary {
    background: var(--primary-light);
    color: #fff;
    border-color: var(--primary-light);
    padding: 10px 24px;
    font-size: 0.9rem;
}

.btn-secondary:hover {
    background: var(--primary);
    border-color: var(--primary);
    color: #fff;
    transform: translateY(-2px);
}

/* ============================================
   Section Styles
   ============================================ */
.section {
    padding: 100px 0;
}

.section-alt {
    background: var(--bg-alt);
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 15px;
    color: var(--primary-dark);
    letter-spacing: -0.5px;
}

.section-subtitle {
    text-align: center;
    color: var(--text-light);
    font-size: 1.1rem;
    max-width: 600px;
    margin: 0 auto 60px;
}

/* ============================================
   About Section
   ============================================ */
.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    margin-bottom: 80px;
}

.about-image img {
    border-radius: var(--radius);
    box-shadow: var(--shadow-lg);
}

.about-text h3 {
    font-size: 1.8rem;
    margin-bottom: 20px;
    color: var(--primary-dark);
}

.about-text p {
    font-size: 1.05rem;
    color: var(--text);
    line-height: 1.8;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
}

.feature-card {
    text-align: center;
    padding: 40px 25px;
    background: var(--bg);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    transition: transform var(--transition), box-shadow var(--transition);
}

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

.feature-icon {
    width: 70px;
    height: 70px;
    margin: 0 auto 20px;
    background: linear-gradient(135deg, var(--primary-light), var(--primary));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 1.5rem;
}

.feature-card h4 {
    font-size: 1.1rem;
    margin-bottom: 10px;
    color: var(--primary-dark);
}

.feature-card p {
    font-size: 0.9rem;
    color: var(--text-light);
}

/* ============================================
   Services Section
   ============================================ */
.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin-bottom: 80px;
}

.service-card {
    background: var(--bg);
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: transform var(--transition), box-shadow var(--transition);
}

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

.service-image img {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

.service-content {
    padding: 30px;
}

.service-content h3 {
    font-size: 1.3rem;
    margin-bottom: 12px;
    color: var(--primary-dark);
}

.service-content p {
    color: var(--text-light);
    margin-bottom: 15px;
    font-size: 0.95rem;
}

.service-list {
    list-style: none;
    margin-bottom: 20px;
}

.service-list li {
    padding: 6px 0;
    padding-left: 20px;
    position: relative;
    font-size: 0.9rem;
    color: var(--text);
}

.service-list li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--secondary);
    font-weight: 700;
}

/* Who We Serve */
.who-we-serve {
    text-align: center;
}

.who-we-serve h3 {
    font-size: 1.8rem;
    margin-bottom: 40px;
    color: var(--primary-dark);
}

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

.serve-card {
    padding: 40px 30px;
    background: var(--bg);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    transition: transform var(--transition);
}

.serve-card:hover {
    transform: translateY(-3px);
}

.serve-icon {
    width: 60px;
    height: 60px;
    margin: 0 auto 15px;
    background: var(--bg-alt);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-light);
    font-size: 1.3rem;
}

.serve-card h4 {
    margin-bottom: 8px;
    color: var(--primary-dark);
}

.serve-card p {
    color: var(--text-light);
    font-size: 0.9rem;
}

/* ============================================
   Equipment Donation Section
   ============================================ */
.equipment-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: start;
    margin-bottom: 80px;
}

.how-it-works h3 {
    font-size: 1.5rem;
    margin-bottom: 30px;
    color: var(--primary-dark);
}

.steps {
    display: flex;
    flex-direction: column;
    gap: 25px;
}

.step {
    display: flex;
    gap: 20px;
    align-items: flex-start;
}

.step-number {
    min-width: 45px;
    height: 45px;
    background: var(--primary);
    color: #fff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1.1rem;
}

.step p {
    color: var(--text);
    line-height: 1.6;
    padding-top: 8px;
}

.equipment-image img {
    border-radius: var(--radius);
    box-shadow: var(--shadow-lg);
}

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

.accept-section h3 {
    font-size: 1.5rem;
    margin-bottom: 30px;
    color: var(--primary-dark);
}

.accept-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 25px;
    margin-bottom: 40px;
}

.accept-card {
    padding: 35px 20px;
    background: var(--bg-alt);
    border-radius: var(--radius);
    border: 2px solid var(--border);
    transition: border-color var(--transition), transform var(--transition);
}

.accept-card:hover {
    border-color: var(--primary-light);
    transform: translateY(-3px);
}

.accept-card i {
    font-size: 2rem;
    color: var(--primary-light);
    margin-bottom: 12px;
}

.accept-card h4 {
    margin-bottom: 5px;
    color: var(--primary-dark);
}

.accept-card p {
    color: var(--text-light);
    font-size: 0.85rem;
}

/* ============================================
   Volunteer Section
   ============================================ */
.volunteer-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: start;
}

.volunteer-opportunities h3 {
    font-size: 1.5rem;
    margin-bottom: 30px;
    color: var(--primary-dark);
}

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

.opportunity-card {
    padding: 30px;
    background: var(--bg);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    text-align: center;
    transition: transform var(--transition);
}

.opportunity-card:hover {
    transform: translateY(-3px);
}

.opportunity-card i {
    font-size: 1.8rem;
    color: var(--primary-light);
    margin-bottom: 12px;
}

.opportunity-card h4 {
    margin-bottom: 5px;
    color: var(--primary-dark);
}

.opportunity-card p {
    color: var(--text-light);
    font-size: 0.85rem;
}

.benefits-list {
    list-style: none;
    margin-bottom: 30px;
}

.benefits-list li {
    padding: 12px 0;
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 1rem;
    color: var(--text);
}

.benefits-list i {
    color: var(--secondary);
    font-size: 1.2rem;
}

/* ============================================
   Contact Section
   ============================================ */
.contact-cards {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin-bottom: 60px;
}

.contact-card {
    text-align: center;
    padding: 40px 30px;
    background: var(--bg-alt);
    border-radius: var(--radius);
    border: 2px solid var(--border);
    transition: border-color var(--transition), transform var(--transition);
}

.contact-card:hover {
    border-color: var(--primary-light);
    transform: translateY(-3px);
}

.contact-icon {
    width: 60px;
    height: 60px;
    margin: 0 auto 20px;
    background: var(--primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 1.3rem;
}

.contact-card h3 {
    margin-bottom: 10px;
    color: var(--primary-dark);
}

.contact-card p {
    color: var(--text-light);
    font-size: 0.9rem;
    margin-bottom: 15px;
}

.contact-card a {
    font-weight: 600;
    color: var(--primary-light);
}

/* Contact Form */
.contact-form-section {
    max-width: 700px;
    margin: 0 auto;
}

.contact-form-section h3 {
    text-align: center;
    font-size: 1.5rem;
    margin-bottom: 30px;
    color: var(--primary-dark);
}

.contact-form {
    background: var(--bg-alt);
    padding: 40px;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
}

.form-group {
    margin-bottom: 20px;
}

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

.form-group label {
    display: block;
    margin-bottom: 6px;
    font-weight: 500;
    font-size: 0.9rem;
    color: var(--text);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px 15px;
    border: 2px solid var(--border);
    border-radius: var(--radius);
    font-family: inherit;
    font-size: 0.95rem;
    color: var(--text);
    background: var(--bg);
    transition: border-color var(--transition);
}

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

/* ============================================
   Footer
   ============================================ */
.footer {
    background: var(--bg-dark);
    color: #ccc;
    padding: 60px 0 30px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 2fr;
    gap: 40px;
    margin-bottom: 40px;
}

.footer h3, .footer h4 {
    color: #fff;
    margin-bottom: 15px;
}

.footer-about p {
    font-size: 0.9rem;
    line-height: 1.7;
}

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

.footer-links li {
    margin-bottom: 8px;
}

.footer-links a {
    color: #ccc;
    font-size: 0.9rem;
    transition: color var(--transition);
}

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

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

.newsletter-form {
    display: flex;
    gap: 10px;
    margin-top: 10px;
}

.newsletter-form input {
    flex: 1;
    padding: 10px 15px;
    border: 2px solid rgba(255,255,255,0.2);
    border-radius: var(--radius);
    background: rgba(255,255,255,0.1);
    color: #fff;
    font-family: inherit;
}

.newsletter-form input::placeholder {
    color: rgba(255,255,255,0.5);
}

.newsletter-form button {
    padding: 10px 20px;
    background: var(--secondary);
    color: #fff;
    border: none;
    border-radius: var(--radius);
    font-weight: 600;
    cursor: pointer;
    transition: background var(--transition);
}

.newsletter-form button:hover {
    background: var(--secondary-dark);
}

.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.1);
    padding-top: 20px;
    text-align: center;
    font-size: 0.85rem;
}

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

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

@media (max-width: 768px) {
    .nav-menu {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: #fff;
        flex-direction: column;
        padding: 20px;
        gap: 10px;
        box-shadow: var(--shadow);
    }

    .nav-menu.active {
        display: flex;
    }

    .nav-toggle {
        display: block;
    }

    .hero-content h1 {
        font-size: 2.2rem;
    }

    .hero-content p {
        font-size: 1.05rem;
    }

    .section {
        padding: 60px 0;
    }

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

    .about-grid,
    .equipment-grid,
    .volunteer-grid {
        grid-template-columns: 1fr;
        gap: 30px;
    }

    .features-grid,
    .serve-grid,
    .contact-cards {
        grid-template-columns: 1fr;
    }

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

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

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

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

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

    .contact-form {
        padding: 25px;
    }
}

@media (max-width: 480px) {
    .hero-content h1 {
        font-size: 1.8rem;
    }

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

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

/* ============================================
   Scroll Reveal Animations
   ============================================ */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal.revealed {
    opacity: 1;
    transform: translateY(0);
}

/* ============================================
   Form Alerts
   ============================================ */
.form-alert {
    padding: 14px 18px;
    border-radius: var(--radius);
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 500;
}

.form-alert-success {
    background: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
}

.form-alert-error {
    background: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}