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

:root {
    /* Hallunix brand colors */
    --primary-green: #10b981;
    --primary-green-dark: #059669;
    --primary-green-light: #d1fae5;
    --gray-50: #f9fafb;
    --gray-100: #f3f4f6;
    --gray-200: #e5e7eb;
    --gray-300: #d1d5db;
    --gray-400: #9ca3af;
    --gray-500: #6b7280;
    --gray-600: #4b5563;
    --gray-700: #374151;
    --gray-800: #1f2937;
    --gray-900: #111827;
    --white: #ffffff;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
    --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);
    --radius: 0.375rem;
    --radius-lg: 0.5rem;
    --radius-xl: 0.75rem;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    line-height: 1.6;
    color: var(--gray-800);
    background-color: var(--white);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

main {
    flex: 1;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
}

/* ===== TYPOGRAPHY ===== */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.25;
    margin-bottom: 1rem;
    color: var(--gray-900);
}

h1 {
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
}

h2 {
    font-size: 2rem;
    margin-bottom: 1.5rem;
}

h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

p {
    margin-bottom: 1rem;
}

a {
    color: var(--primary-green);
    text-decoration: none;
    transition: color 0.2s;
}

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

/* ===== HEADER ===== */
.site-header {
    background-color: var(--white);
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--gray-900);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.logo-icon {
    color: var(--primary-green);
    font-weight: bold;
}

/* Desktop Navigation */
.main-nav ul {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.main-nav a {
    color: var(--gray-600);
    font-weight: 500;
    padding: 0.5rem 0;
    position: relative;
}

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

.main-nav a.active {
    color: var(--primary-green);
}

.main-nav a.active::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background-color: var(--primary-green);
}

/* Mobile Menu Toggle */
.menu-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--gray-600);
    cursor: pointer;
    padding: 0.5rem;
}

/* ===== BUTTONS ===== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius);
    font-weight: 500;
    font-size: 1rem;
    border: none;
    cursor: pointer;
    transition: all 0.2s;
    text-align: center;
    gap: 0.5rem;
}

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

.btn-primary:hover {
    background-color: var(--primary-green-dark);
    transform: translateY(-1px);
}

.btn-secondary {
    background-color: var(--white);
    color: var(--gray-700);
    border: 1px solid var(--gray-300);
}

.btn-secondary:hover {
    background-color: var(--gray-50);
    border-color: var(--gray-400);
}

.btn-full {
    width: 100%;
}

/* ===== HERO SECTION ===== */
.hero {
    padding: 4rem 1rem;
    text-align: center;
    background: linear-gradient(135deg, #f0fdf4 0%, #dcfce7 100%);
}

.hero-content {
    max-width: 800px;
    margin: 0 auto;
}

.hero h1 {
    font-size: 3rem;
    color: var(--gray-900);
}

.hero p {
    font-size: 1.25rem;
    color: var(--gray-600);
    margin-bottom: 2rem;
}

/* ===== FEATURES SECTION ===== */
.section {
    padding: 4rem 1rem;
}

.section-title {
    text-align: center;
    margin-bottom: 3rem;
}

.section-title h2 {
    position: relative;
    display: inline-block;
}

.section-title h2::after {
    content: '';
    position: absolute;
    bottom: -0.5rem;
    left: 50%;
    transform: translateX(-50%);
    width: 4rem;
    height: 3px;
    background-color: var(--primary-green);
}

/* Features Grid */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.feature-card {
    background: var(--white);
    padding: 2rem;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
    text-align: center;
    transition: transform 0.2s, box-shadow 0.2s;
}

.feature-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.feature-icon {
    font-size: 2.5rem;
    color: var(--primary-green);
    margin-bottom: 1rem;
}

/* ===== TESTIMONIALS ===== */
.testimonials {
    background-color: var(--gray-50);
}

.testimonial-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.testimonial-card {
    background: var(--white);
    padding: 2rem;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
    border-left: 4px solid var(--primary-green);
}

.testimonial-text {
    font-style: italic;
    margin-bottom: 1rem;
    color: var(--gray-700);
}

.testimonial-author {
    font-weight: 600;
    color: var(--gray-900);
}

.testimonial-role {
    font-size: 0.875rem;
    color: var(--gray-500);
}

/* ===== HOW IT WORKS ===== */
.steps-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.step {
    text-align: center;
    padding: 2rem 1rem;
}

.step-number {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 3rem;
    height: 3rem;
    background-color: var(--primary-green-light);
    color: var(--primary-green-dark);
    border-radius: 50%;
    font-weight: 700;
    font-size: 1.25rem;
    margin-bottom: 1rem;
}

/* ===== FOOTER ===== */
.site-footer {
    background-color: var(--gray-900);
    color: var(--gray-300);
    padding: 3rem 1rem 2rem;
    margin-top: auto;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 3rem;
    margin-bottom: 2rem;
}

.footer-logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--white);
    margin-bottom: 1rem;
}

.footer-description {
    color: var(--gray-400);
    margin-bottom: 1.5rem;
}

.footer-section h3 {
    color: var(--white);
    font-size: 1.125rem;
    margin-bottom: 1rem;
}

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

.footer-links li {
    margin-bottom: 0.75rem;
}

.footer-links a {
    color: var(--gray-400);
    transition: color 0.2s;
}

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

.footer-bottom {
    border-top: 1px solid var(--gray-800);
    padding-top: 2rem;
    text-align: center;
    color: var(--gray-400);
    font-size: 0.875rem;
}

/* ===== ABOUT PAGE ===== */
.team-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.team-card {
    background: var(--white);
    padding: 2rem;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
    text-align: center;
}

.team-avatar {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    background-color: var(--primary-green-light);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
    color: var(--primary-green-dark);
    font-size: 3rem;
}

.team-role {
    color: var(--primary-green);
    font-weight: 500;
    margin-bottom: 1rem;
}

/* ===== SHARE PAGE ===== */
.upload-area {
    max-width: 600px;
    margin: 2rem auto;
    padding: 3rem 2rem;
    background: var(--white);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    border: 2px dashed var(--gray-300);
    text-align: center;
}

.upload-area:hover {
    border-color: var(--primary-green);
}

.upload-icon {
    font-size: 4rem;
    color: var(--primary-green);
    margin-bottom: 1.5rem;
}

.file-input {
    width: 100%;
    padding: 1rem;
    border: 2px solid var(--gray-300);
    border-radius: var(--radius);
    margin-bottom: 1.5rem;
    font-size: 1rem;
}

.file-input:focus {
    outline: none;
    border-color: var(--primary-green);
    box-shadow: 0 0 0 3px var(--primary-green-light);
}

.expiry-selector {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: 1rem;
    margin: 2rem 0;
}

.expiry-option {
    padding: 1rem;
    border: 2px solid var(--gray-300);
    border-radius: var(--radius);
    cursor: pointer;
    transition: all 0.2s;
    text-align: center;
}

.expiry-option:hover {
    border-color: var(--primary-green);
}

.expiry-option.selected {
    border-color: var(--primary-green);
    background-color: var(--primary-green-light);
}

.privacy-notice {
    background-color: var(--gray-50);
    padding: 1.5rem;
    border-radius: var(--radius);
    margin-top: 2rem;
    border-left: 4px solid var(--primary-green);
}

/* ===== LEGAL PAGE ===== */
.legal-content {
    max-width: 800px;
    margin: 0 auto;
}

.legal-section {
    margin-bottom: 3rem;
}

.legal-section h2 {
    color: var(--gray-900);
    border-bottom: 2px solid var(--gray-200);
    padding-bottom: 0.5rem;
    margin-bottom: 1.5rem;
}

.legal-section h3 {
    color: var(--gray-800);
    margin-top: 2rem;
}

.legal-section p {
    margin-bottom: 1rem;
}

.legal-section ul {
    margin-left: 1.5rem;
    margin-bottom: 1rem;
}

.legal-section li {
    margin-bottom: 0.5rem;
}

/* ===== CONTACT PAGE ===== */
.contact-info {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.contact-card {
    background: var(--white);
    padding: 2rem;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
    text-align: center;
}

.contact-icon {
    font-size: 2.5rem;
    color: var(--primary-green);
    margin-bottom: 1rem;
}

/* ===== UTILITIES ===== */
.text-center {
    text-align: center;
}

.mt-1 { margin-top: 1rem; }
.mt-2 { margin-top: 2rem; }
.mt-3 { margin-top: 3rem; }
.mt-4 { margin-top: 4rem; }

.mb-1 { margin-bottom: 1rem; }
.mb-2 { margin-bottom: 2rem; }
.mb-3 { margin-bottom: 3rem; }
.mb-4 { margin-bottom: 4rem; }

/* ===== RESPONSIVE DESIGN ===== */
@media (max-width: 768px) {
    h1 {
        font-size: 2rem;
    }
    
    h2 {
        font-size: 1.75rem;
    }
    
    .hero h1 {
        font-size: 2.5rem;
    }
    
    .hero {
        padding: 3rem 1rem;
    }
    
    .section {
        padding: 3rem 1rem;
    }
    
    /* Mobile Navigation */
    .menu-toggle {
        display: block;
    }
    
    .main-nav {
        position: fixed;
        top: 70px;
        left: 0;
        width: 100%;
        background-color: var(--white);
        box-shadow: var(--shadow-md);
        padding: 1rem;
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: all 0.3s;
    }
    
    .main-nav.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }
    
    .main-nav ul {
        flex-direction: column;
        gap: 0;
    }
    
    .main-nav li {
        width: 100%;
    }
    
    .main-nav a {
        display: block;
        padding: 1rem;
        border-bottom: 1px solid var(--gray-100);
    }
    
    .main-nav a:last-child {
        border-bottom: none;
    }
}

@media (max-width: 480px) {
    .hero h1 {
        font-size: 2rem;
    }
    
    .hero p {
        font-size: 1.125rem;
    }
    
    .btn {
        padding: 0.625rem 1.25rem;
    }
    
    .upload-area {
        padding: 2rem 1rem;
    }
}

.typewriter-text {
    overflow: hidden;
    border-right: 3px solid var(--primary-green);
    white-space: normal;
    animation: 
        typing 3.5s steps(40, end),
        blink-caret 0.75s step-end infinite;
}

@keyframes typing {
    from { width: 0 }
    to { width: 100% }
}

@keyframes blink-caret {
    from, to { border-color: transparent }
    50% { border-color: var(--primary-green); }
}