/* frontend/css/style.css */

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

:root {
    /* Colors */
    --primary-blue: #3B82F6;
    --primary-pink: #EC4899;
    --primary-orange: #F59E0B;
    --primary-green: #10B981;
    --primary-purple: #8B5CF6;
    --primary-cyan: #06B6D4;
    --primary-red: #EF4444;

    /* Gradients */
    --primary-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 25%, #f093fb 50%, #4facfe 100%);
    --secondary-gradient: linear-gradient(135deg, #0ba360 0%, #3cba92 100%);
    --accent-gradient: linear-gradient(135deg, #f12711 0%, #f5af19 100%);
    --gradient-blue: linear-gradient(135deg, #667eea, #764ba2);
    --gradient-green: linear-gradient(135deg, #0ba360, #3cba92);
    --gradient-orange: linear-gradient(135deg, #f12711, #f5af19);
    --gradient-purple: linear-gradient(135deg, #8B5CF6, #EC4899);
    --gradient-teal: linear-gradient(135deg, #06B6D4, #14B8A6);
    --gradient-pink: linear-gradient(135deg, #ec008c, #fc6767);

    /* Text Colors */
    --text-primary: #1F2937;
    --text-secondary: #6B7280;
    --text-light: #9CA3AF;

    /* Backgrounds */
    --bg-primary: #0F172A;
    --bg-secondary: #1E293B;
    --bg-dark: #0A0E27;

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;

    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-mono: 'SF Mono', Monaco, 'Cascadia Code', 'Roboto Mono', Consolas, 'Courier New', monospace;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    position: relative;
}

/* Animated background orbs */
body::before,
body::after {
    content: '';
    position: fixed;
    border-radius: 50%;
    filter: blur(100px);
    opacity: 0.15;
    z-index: -1;
    pointer-events: none;
}

body::before {
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(102, 126, 234, 0.8), transparent);
    top: -100px;
    left: -100px;
    animation: float 15s ease-in-out infinite;
}

body::after {
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(236, 72, 153, 0.8), transparent);
    bottom: -50px;
    right: -50px;
    animation: float 20s ease-in-out infinite reverse;
}

@keyframes float {

    0%,
    100% {
        transform: translate(0, 0);
    }

    25% {
        transform: translate(50px, -50px);
    }

    50% {
        transform: translate(-30px, 30px);
    }

    75% {
        transform: translate(40px, 40px);
    }
}

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

/* ============ NAVIGATION ============ */

.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 1rem 0;
    background: rgba(15, 23, 42, 0);
    backdrop-filter: blur(0px);
    transition: all 0.3s ease;
}

.navbar.scrolled {
    background: rgba(15, 23, 42, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: 0 4px 30px rgba(102, 126, 234, 0.2);
    padding: 0.8rem 0;
}

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

.nav-brand {
    font-size: 1.5rem;
    font-weight: 900;
    background: var(--primary-gradient);
    background-size: 200% 200%;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: gradientShift 5s ease infinite;
}

@keyframes gradientShift {

    0%,
    100% {
        background-position: 0% 50%;
    }

    50% {
        background-position: 100% 50%;
    }
}

.nav-menu {
    display: flex;
    gap: 2.5rem;
    align-items: center;
}

.nav-link {
    color: #E2E8F0;
    text-decoration: none;
    font-weight: 500;
    position: relative;
    transition: all 0.3s ease;
    padding: 0.5rem 0;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-gradient);
    transition: width 0.3s ease;
}

.nav-link:hover {
    color: #fff;
}

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

.nav-actions {
    display: flex;
    gap: 1rem;
    align-items: center;
}

.btn-download {
    padding: 0.7rem 1.5rem;
    background: var(--primary-gradient);
    background-size: 200% 200%;
    color: white;
    border: none;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 0.9rem;
    animation: gradientShift 5s ease infinite;
}

.btn-download:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(102, 126, 234, 0.4);
}

.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
}

.hamburger span {
    width: 25px;
    height: 2.5px;
    background: linear-gradient(90deg, #667eea, #f093fb);
    border-radius: 2px;
    transition: all 0.3s ease;
}

.hamburger.active span:nth-child(1) {
    transform: rotate(45deg) translate(8px, 8px);
}

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

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

/* ============ HERO SECTION ============ */

.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 80px;
    position: relative;
    overflow: hidden;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
}

.hero h1 {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 900;
    margin-bottom: 1.5rem;
    line-height: 1.2;
    background: linear-gradient(135deg, #ffffff, #e0e7ff);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: fadeInUp 0.8s ease;
}

.gradient-text {
    background: var(--primary-gradient);
    background-size: 200% 200%;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: gradientShift 6s ease infinite;
}

.hero p {
    font-size: 1.2rem;
    color: #CBD5E1;
    margin-bottom: 2rem;
    line-height: 1.8;
    animation: fadeInUp 0.8s ease 0.1s both;
}

.hero-buttons {
    display: flex;
    gap: 1.5rem;
    margin-bottom: 2rem;
    flex-wrap: wrap;
    animation: fadeInUp 0.8s ease 0.2s both;
}

.btn-primary {
    padding: 1rem 2rem;
    background: var(--primary-gradient);
    background-size: 200% 200%;
    color: white;
    border: none;
    border-radius: 12px;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 1rem;
    animation: gradientShift 5s ease infinite;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    box-shadow: 0 10px 30px rgba(102, 126, 234, 0.3);
}

.btn-primary:hover {
    transform: translateY(-3px) scale(1.02);
    box-shadow: 0 15px 40px rgba(102, 126, 234, 0.5);
}

.btn-secondary {
    padding: 1rem 2rem;
    background: rgba(255, 255, 255, 0.1);
    color: white;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: 12px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 1rem;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.15);
    border-color: rgba(255, 255, 255, 0.5);
    transform: translateY(-3px);
}

.hero-image {
    position: relative;
    animation: slideInRight 0.8s ease 0.2s both;
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(50px);
    }

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

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }

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

.phone-mockup {
    max-width: 350px;
    margin: 0 auto;
    padding: 15px;
    border-radius: 40px;
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.15), rgba(236, 72, 153, 0.15));
    border: 2px solid rgba(102, 126, 234, 0.3);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    animation: phoneFloat 4s ease-in-out infinite;
}

@keyframes phoneFloat {

    0%,
    100% {
        transform: translateY(0);
    }

    50% {
        transform: translateY(-20px);
    }
}

.phone-mockup img {
    width: 100%;
    border-radius: 35px;
    display: block;
    max-height: 600px;
    object-fit: cover;
}

.hero-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
    margin-top: 2rem;
    padding: 2rem;
    animation: fadeInUp 0.8s ease 0.3s both;
}

.stat {
    text-align: center;
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 900;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: countUp 2s ease-out;
}

@keyframes countUp {
    from {
        opacity: 0;
    }

    to {
        opacity: 1;
    }
}

.stat-label {
    color: #94A3B8;
    font-size: 0.9rem;
    margin-top: 0.5rem;
}

/* ============ SECTIONS ============ */

.section {
    padding: 5rem var(--spacing-lg);
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-title {
    font-size: clamp(2rem, 4vw, 3.5rem);
    font-weight: 900;
    margin-bottom: 1rem;
    background: linear-gradient(135deg, #ffffff, #e0e7ff);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-subtitle {
    font-size: 1.2rem;
    color: #94A3B8;
    max-width: 600px;
    margin: 0 auto;
}

/* ============ FEATURES SECTION ============ */

.features-section {
    background: linear-gradient(180deg, transparent, rgba(102, 126, 234, 0.03));
}

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

.feature-card {
    padding: 2rem;
    background: linear-gradient(135deg, rgba(15, 23, 42, 0.6), rgba(30, 41, 59, 0.6));
    border: 1px solid rgba(102, 126, 234, 0.2);
    border-radius: 20px;
    backdrop-filter: blur(10px);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
    cursor: pointer;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(102, 126, 234, 0.1), transparent);
    opacity: 0;
    transition: opacity 0.4s ease;
}

.feature-card:hover::before {
    opacity: 1;
}

.feature-card:hover {
    transform: translateY(-10px) scale(1.02);
    border-color: rgba(102, 126, 234, 0.5);
    box-shadow: 0 20px 50px rgba(102, 126, 234, 0.2);
    background: linear-gradient(135deg, rgba(15, 23, 42, 0.8), rgba(30, 41, 59, 0.8));
}

.feature-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 1.5rem;
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 2rem;
    box-shadow: 0 10px 30px rgba(102, 126, 234, 0.4);
    transition: all 0.4s ease;
    position: relative;
    z-index: 1;
}

.feature-card:hover .feature-icon {
    transform: scale(1.15) rotate(5deg);
}

.icon-blue {
    background: var(--gradient-blue);
}

.icon-green {
    background: var(--gradient-green);
}

.icon-orange {
    background: var(--gradient-orange);
}

.icon-purple {
    background: var(--gradient-purple);
}

.icon-teal {
    background: var(--gradient-teal);
}

.icon-pink {
    background: var(--gradient-pink);
}

.feature-title {
    font-size: 1.3rem;
    font-weight: 700;
    color: #fff;
    margin-bottom: 1rem;
    position: relative;
    z-index: 1;
}

.feature-description {
    color: #CBD5E1;
    font-size: 0.95rem;
    line-height: 1.7;
    position: relative;
    z-index: 1;
}

/* ============ CAROUSEL SECTION ============ */

.screenshots-section {
    background: linear-gradient(180deg, transparent, rgba(102, 126, 234, 0.05) 20%, rgba(236, 72, 153, 0.05) 80%, transparent);
}

.carousel-container {
    position: relative;
    padding: 3rem;
    background: linear-gradient(135deg, rgba(15, 23, 42, 0.7), rgba(30, 41, 59, 0.7));
    border: 1px solid rgba(102, 126, 234, 0.3);
    border-radius: 24px;
    overflow: hidden;
}

.carousel-track {
    display: flex;
    gap: 2rem;
    transition: transform 0.7s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    padding: 0;
    margin: 0;
}

.carousel-slide {
    min-width: 320px;
    width: 320px;
    flex-shrink: 0;
    position: relative;
    text-align: center;
    padding: 0;
}

.carousel-slide img {
    width: 320px;
    height: auto;
    border-radius: 16px;
    border: 2px solid rgba(102, 126, 234, 0.3);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
    transition: all 0.4s ease;
    margin: 0 auto 1rem;
    display: block;
    object-fit: contain;
}

.carousel-slide:hover img {
    transform: translateY(-10px) scale(1.02);
    border-color: rgba(102, 126, 234, 0.6);
    box-shadow: 0 20px 50px rgba(102, 126, 234, 0.3);
}

.slide-caption {
    color: #CBD5E1;
    font-size: 0.9rem;
    font-weight: 500;
    padding: 0 1rem;
}

.carousel-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 50px;
    height: 50px;
    background: var(--primary-gradient);
    border: none;
    border-radius: 50%;
    color: white;
    cursor: pointer;
    font-size: 1.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
    z-index: 10;
    box-shadow: 0 5px 20px rgba(102, 126, 234, 0.4);
}

.carousel-btn:hover {
    transform: translateY(-50%) scale(1.15);
    box-shadow: 0 10px 30px rgba(102, 126, 234, 0.6);
}

.carousel-btn.prev {
    left: 1rem;
}

.carousel-btn.next {
    right: 1rem;
}

.carousel-dots {
    display: flex;
    justify-content: center;
    gap: 0.75rem;
    margin-top: 2rem;
}

.carousel-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: rgba(102, 126, 234, 0.3);
    cursor: pointer;
    transition: all 0.4s ease;
    border: 2px solid transparent;
}

.carousel-dot:hover {
    background: rgba(102, 126, 234, 0.5);
    transform: scale(1.2);
}

.carousel-dot.active {
    width: 48px;
    border-radius: 8px;
    background: var(--primary-gradient);
    box-shadow: 0 0 20px rgba(102, 126, 234, 0.8);
}

.screenshot-features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 1.5rem;
    margin-top: 3rem;
}

.screenshot-feature {
    padding: 1.75rem;
    text-align: center;
    background: linear-gradient(135deg, rgba(15, 23, 42, 0.5), rgba(30, 41, 59, 0.5));
    border: 1px solid rgba(102, 126, 234, 0.2);
    border-radius: 16px;
    transition: all 0.3s ease;
    cursor: pointer;
}

.screenshot-feature:hover {
    transform: translateY(-5px);
    border-color: rgba(102, 126, 234, 0.5);
    box-shadow: 0 10px 30px rgba(102, 126, 234, 0.15);
}

.feature-icon-small {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    filter: drop-shadow(0 0 10px rgba(102, 126, 234, 0.6));
}

.screenshot-feature h4 {
    color: white;
    margin-bottom: 0.5rem;
    font-size: 1.1rem;
    font-weight: 700;
}

.screenshot-feature p {
    color: #94A3B8;
    font-size: 0.95rem;
    margin: 0;
}

/* ============ ABOUT SECTION ============ */

.about-section {
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.05), rgba(236, 72, 153, 0.05));
}

.about-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: flex-start;
}

.about-description {
    font-size: 1.1rem;
    color: #CBD5E1;
    line-height: 1.9;
    margin-bottom: 1.5rem;
}

.about-highlights {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    margin-top: 2rem;
}

.highlight-item {
    display: flex;
    gap: 1.5rem;
    padding: 1.5rem;
    background: linear-gradient(135deg, rgba(15, 23, 42, 0.5), rgba(30, 41, 59, 0.5));
    border-radius: 16px;
    border: 1px solid rgba(102, 126, 234, 0.2);
    transition: all 0.3s ease;
    cursor: pointer;
}

.highlight-item:hover {
    transform: translateX(10px);
    border-color: rgba(102, 126, 234, 0.5);
    box-shadow: 0 5px 20px rgba(102, 126, 234, 0.15);
}

.highlight-icon {
    width: 50px;
    height: 50px;
    background: var(--gradient-blue);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: bold;
    flex-shrink: 0;
    font-size: 1.5rem;
    box-shadow: 0 5px 15px rgba(102, 126, 234, 0.3);
}

.highlight-item h4 {
    color: white;
    margin-bottom: 0.5rem;
    font-size: 1.1rem;
    font-weight: 700;
}

.highlight-item p {
    color: #94A3B8;
    margin: 0;
}

.stats-card {
    padding: 2rem;
    background: linear-gradient(135deg, rgba(15, 23, 42, 0.7), rgba(30, 41, 59, 0.7));
    border: 1px solid rgba(102, 126, 234, 0.3);
    border-radius: 20px;
    backdrop-filter: blur(10px);
}

.stats-card h3 {
    color: white;
    margin-bottom: 2rem;
    font-size: 1.5rem;
    font-weight: 800;
}

.stat-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.2rem 0;
    border-bottom: 1px solid rgba(102, 126, 234, 0.2);
    transition: all 0.3s ease;
}

.stat-row:hover {
    padding-left: 1rem;
    transform: translateX(5px);
}

.stat-row:last-child {
    border-bottom: none;
}

.stat-row span:first-child {
    color: #94A3B8;
    font-weight: 500;
}

.stat-value {
    font-weight: 900;
    font-size: 1.3rem;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ============ DOWNLOAD SECTION ============ */

.download-section {
    background: linear-gradient(180deg, transparent, rgba(102, 126, 234, 0.1));
}

.download-card {
    padding: 4rem 2rem;
    text-align: center;
    background: linear-gradient(135deg, rgba(15, 23, 42, 0.8), rgba(30, 41, 59, 0.8));
    border: 2px solid;
    border-image: linear-gradient(135deg, #667eea, #764ba2, #f093fb) 1;
    border-radius: 24px;
}

.download-buttons {
    display: flex;
    gap: 1.5rem;
    justify-content: center;
    margin-top: 2rem;
    flex-wrap: wrap;
}

.store-btn {
    display: inline-flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem 2rem;
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.2), rgba(236, 72, 153, 0.2));
    border: 2px solid rgba(102, 126, 234, 0.4);
    border-radius: 12px;
    color: white;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    font-size: 0.95rem;
}

.store-btn:hover {
    transform: translateY(-5px);
    border-color: rgba(102, 126, 234, 0.8);
    box-shadow: 0 10px 30px rgba(102, 126, 234, 0.3);
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.3), rgba(236, 72, 153, 0.3));
}

.store-label {
    display: block;
    font-size: 0.8rem;
    color: #94A3B8;
    margin-bottom: 0.2rem;
}

.store-name {
    display: block;
    font-size: 1.1rem;
    font-weight: 800;
}

/* ============ CONTACT SECTION ============ */

.contact-section {
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.05), rgba(236, 72, 153, 0.05));
}

.contact-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    margin-top: 3rem;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.contact-card {
    padding: 2rem;
    text-align: center;
    background: linear-gradient(135deg, rgba(15, 23, 42, 0.6), rgba(30, 41, 59, 0.6));
    border: 1px solid rgba(102, 126, 234, 0.2);
    border-radius: 16px;
    backdrop-filter: blur(10px);
    transition: all 0.3s ease;
}

.contact-card:hover {
    transform: translateY(-5px);
    border-color: rgba(102, 126, 234, 0.5);
    box-shadow: 0 10px 30px rgba(102, 126, 234, 0.2);
}

.contact-icon {
    width: 60px;
    height: 60px;
    margin: 0 auto 1rem;
    background: var(--gradient-blue);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.5rem;
    box-shadow: 0 5px 20px rgba(102, 126, 234, 0.3);
}

.contact-card h4 {
    color: white;
    margin-bottom: 0.5rem;
    font-size: 1.1rem;
    font-weight: 700;
}

.contact-card p {
    color: #94A3B8;
    margin: 0;
}

.contact-form {
    padding: 2rem;
    background: linear-gradient(135deg, rgba(15, 23, 42, 0.6), rgba(30, 41, 59, 0.6));
    border: 1px solid rgba(102, 126, 234, 0.2);
    border-radius: 16px;
    backdrop-filter: blur(10px);
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    color: #E2E8F0;
    margin-bottom: 0.5rem;
    font-weight: 600;
    font-size: 0.95rem;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 1rem;
    border: 1px solid rgba(102, 126, 234, 0.3);
    border-radius: 8px;
    background: rgba(15, 23, 42, 0.5);
    color: white;
    font-family: var(--font-family);
    font-size: 1rem;
    transition: all 0.3s ease;
    resize: vertical;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: #64748B;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: rgba(102, 126, 234, 0.8);
    background: rgba(15, 23, 42, 0.8);
    box-shadow: 0 0 15px rgba(102, 126, 234, 0.2);
}

.submit-btn {
    width: 100%;
    justify-content: center;
}

/* ============ FOOTER ============ */

.footer {
    background: linear-gradient(135deg, #1e3c72 0%, #2a5298 50%, #7e22ce 100%);
    color: white;
    padding: 3rem var(--spacing-lg) 1rem;
    position: relative;
}

.footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, #667eea, #764ba2, #f093fb, #4facfe, #00f2fe);
}

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

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.5fr;
    gap: 2rem;
    margin-bottom: 2rem;
    padding: 0 var(--spacing-lg);
}

.footer-brand {
    max-width: 320px;
}

.footer-title {
    font-size: 1.3rem;
    font-weight: 900;
    margin-bottom: 1rem;
}

.footer-tagline {
    opacity: 0.9;
    margin-bottom: 1.5rem;
    font-size: 0.95rem;
}

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

.social-link {
    width: 45px;
    height: 45px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: 10px;
    color: white;
    text-decoration: none;
    transition: all 0.3s ease;
    font-weight: 600;
}

.social-link:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(255, 255, 255, 0.2);
}

.footer-links h4,
.footer-newsletter h4 {
    margin-bottom: 1rem;
    font-size: 1rem;
    font-weight: 700;
}

.footer-links a {
    display: block;
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    margin-bottom: 0.7rem;
    transition: all 0.3s ease;
    font-size: 0.95rem;
}

.footer-links a:hover {
    color: white;
    transform: translateX(5px);
}

.footer-newsletter p {
    margin-bottom: 1rem;
    opacity: 0.9;
    font-size: 0.95rem;
}

.newsletter-form {
    display: flex;
    gap: 0.5rem;
}

.newsletter-form input {
    flex: 1;
    padding: 0.8rem;
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.1);
    color: white;
    font-family: var(--font-family);
    font-size: 0.9rem;
}

.newsletter-form input::placeholder {
    color: rgba(255, 255, 255, 0.6);
}

.newsletter-form button {
    padding: 0.8rem 1.5rem;
    background: var(--primary-gradient);
    color: white;
    border: none;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    white-space: nowrap;
}

.newsletter-form button:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(102, 126, 234, 0.3);
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    opacity: 0.8;
    font-size: 0.9rem;
    margin-left: var(--spacing-lg);
    margin-right: var(--spacing-lg);
}

/* ============ RESPONSIVE DESIGN ============ */

@media (max-width: 768px) {
    .nav-menu {
        display: none;
        position: fixed;
        top: 60px;
        left: 0;
        right: 0;
        flex-direction: column;
        background: rgba(15, 23, 42, 0.98);
        padding: 2rem;
        gap: 1.5rem;
        border-bottom: 2px solid rgba(102, 126, 234, 0.3);
        z-index: 999;
    }

    .nav-menu.active {
        display: flex;
        animation: slideDown 0.3s ease;
    }

    @keyframes slideDown {
        from {
            transform: translateY(-100%);
            opacity: 0;
        }

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

    .hamburger {
        display: flex;
    }

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

    .hero-image {
        order: -1;
    }

    .hero-stats {
        grid-template-columns: 1fr;
    }

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

    .btn-primary,
    .btn-secondary {
        width: 100%;
        justify-content: center;
    }

    .carousel-btn {
        width: 40px;
        height: 40px;
        font-size: 1.2rem;
    }

    .carousel-slide {
        min-width: 280px;
        width: 280px;
    }

    .carousel-slide img {
        width: 280px;
    }

    .about-container,
    .contact-container {
        grid-template-columns: 1fr;
    }

    .download-buttons {
        flex-direction: column;
    }

    .store-btn {
        width: 100%;
        justify-content: center;
    }

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

    .section {
        padding: 3rem var(--spacing-md);
    }

    .section-header {
        margin-bottom: 2rem;
    }

    .carousel-container {
        padding: 2rem 1rem;
    }

    .carousel-btn.prev {
        left: 0.5rem;
    }

    .carousel-btn.next {
        right: 0.5rem;
    }
}

@media (max-width: 480px) {
    :root {
        --spacing-lg: 1rem;
    }

    .container {
        padding: 0 var(--spacing-sm);
    }

    .hero {
        padding-top: 60px;
    }

    .hero h1 {
        font-size: 1.8rem;
    }

    .hero p {
        font-size: 1rem;
    }

    .section-title {
        font-size: 1.8rem;
    }

    .carousel-slide {
        min-width: 100%;
        width: 100%;
    }

    .carousel-slide img {
        width: 100%;
    }

    .feature-card {
        padding: 1.5rem;
    }

    .download-card {
        padding: 2rem 1.5rem;
    }

    .contact-form,
    .stats-card {
        max-width: 100%;
    }

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

    .footer-bottom {
        margin-left: var(--spacing-sm);
        margin-right: var(--spacing-sm);
    }
}