/* ===== CSS VARIABLES ===== */
:root {
    --primary-color: #72d9a2;
    --primary-dark: #4fd675;
    --text-primary: #2d3748;
    --text-secondary: #718096;
    --bg-secondary: #f7fafc;
    --border-color: #e2e8f0;
    --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);
}

/* ===== HEADER/NAVBAR ===== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    z-index: 100;
    transition: all 0.3s ease;
}

.header.scrolled {
    background: rgba(255, 255, 255, 0.98);
    box-shadow: var(--shadow-md);
}

.navbar {
    padding: 15px 0;
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
}

.logo-link {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
}

.logo-img {
    width: 32px;
    height: 32px;
}

.logo-text {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
}

.nav-links {
    display: flex;
    gap: 30px;
}

.nav-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
}

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

.nav-actions {
    display: flex;
    align-items: center;
    gap: 15px;
}

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

.hamburger span {
    width: 25px;
    height: 3px;
    background: var(--text-primary);
    margin: 3px 0;
    transition: 0.3s;
}

.hamburger.active span:nth-child(1) {
    transform: rotate(-45deg) translate(-5px, 6px);
}

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

.hamburger.active span:nth-child(3) {
    transform: rotate(45deg) translate(-5px, -6px);
}

.mobile-menu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: white;
    border-top: 1px solid var(--border-color);
    box-shadow: var(--shadow-lg);
}

.mobile-menu.active {
    display: block;
}

.mobile-menu-content {
    padding: 20px;
}

.mobile-nav-link {
    display: block;
    padding: 15px 0;
    color: var(--text-secondary);
    text-decoration: none;
    border-bottom: 1px solid var(--border-color);
}

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

.mobile-actions {
    margin-top: 20px;
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
    }

    .hamburger {
        display: flex;
    }
}

/* ===== HERO SECTION ===== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
    background: linear-gradient(135deg, #f7fafc 0%, #edf2f7 100%);
    padding-top: 80px;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 1;
}

.hero-shapes {
    position: relative;
    width: 100%;
    height: 100%;
}

.shape {
    position: absolute;
    border-radius: 50%;
    background: linear-gradient(
        135deg,
        var(--primary-color),
        var(--primary-dark)
    );
    opacity: 0.1;
    animation: float 6s ease-in-out infinite;
}

.shape-1 {
    width: 300px;
    height: 300px;
    top: 10%;
    right: 10%;
    animation-delay: 0s;
}

.shape-2 {
    width: 200px;
    height: 200px;
    bottom: 20%;
    left: 5%;
    animation-delay: 2s;
}

.shape-3 {
    width: 150px;
    height: 150px;
    top: 50%;
    left: 50%;
    animation-delay: 4s;
}

@keyframes float {
    0%,
    100% {
        transform: translateY(0px) rotate(0deg);
    }
    50% {
        transform: translateY(-20px) rotate(180deg);
    }
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    position: relative;
    z-index: 2;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 20px;
    color: var(--text-primary);
}

.hero-description {
    font-size: 1.2rem;
    color: var(--text-secondary);
    margin-bottom: 30px;
    line-height: 1.6;
}

.hero-stats {
    display: flex;
    gap: 40px;
}

.phone-mockup {
    position: relative;
    margin: 0 auto;
    max-width: 350px;
    width: 100%;
    background: transparent;
}

.app-screenshot {
    width: 100%;
    height: auto;
    border-radius: 20px;
    transition: transform 0.3s ease;
    background: transparent;
}

/* ===== FEATURES SECTION ===== */
.features {
    background: white;
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

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

.section-description {
    font-size: 1.1rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
}

.feature-card {
    background: white;
    padding: 40px 30px;
    border-radius: 15px;
    text-align: center;
    box-shadow: var(--shadow-md);
    transition: all 0.3s ease;
    border: 1px solid var(--border-color);
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-xl);
}

.feature-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(
        135deg,
        var(--primary-color),
        var(--primary-dark)
    );
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 25px;
    color: white;
    font-size: 2rem;
}

.feature-title {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 15px;
    color: var(--text-primary);
}

.feature-description {
    color: var(--text-secondary);
    line-height: 1.6;
}

/* ===== ASSISTANTS SECTION ===== */
.assistants {
    background: #f8fafc;
}

.assistants-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
}

.assistant-card {
    background: white;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: all 0.3s ease;
    border: 1px solid var(--border-color);
}

.assistant-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-xl);
}

.assistant-image {
    height: 200px;
    overflow: hidden;
    position: relative;
}

.assistant-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.assistant-card:hover .assistant-image img {
    transform: scale(1.05);
}

.assistant-info {
    padding: 25px;
}

.assistant-name {
    font-size: 1.4rem;
    font-weight: 600;
    margin-bottom: 10px;
    color: var(--text-primary);
}

.assistant-description {
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 20px;
}

.assistant-features {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.feature-tag {
    background: linear-gradient(
        135deg,
        var(--primary-color),
        var(--primary-dark)
    );
    color: white;
    padding: 5px 12px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 500;
}

/* ===== DOWNLOAD SECTION ===== */
.download {
    background: linear-gradient(
        135deg,
        var(--primary-color) 0%,
        var(--primary-dark) 100%
    );
    color: white;
    position: relative;
    overflow: hidden;
}

.download::before {
    content: "";
    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="grid" width="10" height="10" patternUnits="userSpaceOnUse"><path d="M 10 0 L 0 0 0 10" fill="none" stroke="rgba(255,255,255,0.1)" stroke-width="0.5"/></pattern></defs><rect width="100" height="100" fill="url(%23grid)"/></svg>');
    opacity: 0.3;
}

.download-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    position: relative;
    z-index: 2;
}

.download-title {
    font-size: 3rem;
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 20px;
}

.text-gradient-white {
    background: linear-gradient(135deg, #ffffff 0%, #ffd700 50%, #ffeb3b 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    font-weight: 900;
}

.download-description {
    font-size: 1.1rem;
    line-height: 1.6;
    margin-bottom: 30px;
    opacity: 0.9;
}

.download-features {
    margin-bottom: 40px;
}

.download-feature {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 12px;
    font-size: 1rem;
}

.download-feature i {
    color: #ffd700;
    font-size: 1.2rem;
}

.download-stats {
    display: flex;
    gap: 40px;
}

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

.stat-number {
    display: block;
    font-size: 1.8rem;
    font-weight: 700;
    color: #ffd700;
}

.stat-label {
    font-size: 0.9rem;
    opacity: 0.8;
}

.stat {
    text-align: center;
}

.stat .stat-number {
    display: block;
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary-color);
}

.stat .stat-label {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

/* ===== APP GALLERY ===== */
.app-gallery {
    position: relative;
    max-width: 600px;
    margin: 0 auto;
}

.gallery-container {
    position: relative;
    height: 600px;
    overflow: hidden;
    border-radius: 20px;
    perspective: 1000px;
}

.gallery-slide {
    position: absolute;
    width: 280px;
    height: auto;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) translateZ(0) scale(0.8);
    transition: all 0.5s ease;
    opacity: 0.7;
    cursor: pointer;
    z-index: 1;
    border-radius: 20px;
    overflow: hidden;
}

.gallery-slide.active {
    transform: translate(-50%, -50%) translateZ(50px) scale(1);
    opacity: 1;
    z-index: 3;
    cursor: default;
}

.gallery-slide.prev {
    transform: translate(-110%, -50%) translateZ(0) scale(0.75);
    opacity: 0.8;
    z-index: 2;
}

.gallery-slide.next {
    transform: translate(10%, -50%) translateZ(0) scale(0.75);
    opacity: 0.8;
    z-index: 2;
}

.gallery-image {
    width: 100%;
    height: auto;
    display: block;
    border-radius: 20px;
    background: transparent;
    transition: all 0.3s ease;
}

.gallery-slide:hover .gallery-image {
    transform: scale(1.02);
}

.gallery-slide.active:hover .gallery-image {
    transform: scale(1);
}

/* ===== CONTACT SECTION ===== */
.contact {
    background: white;
}

.contact-content {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.contact-methods {
    margin: 40px 0;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
    justify-items: center;
}

.contact-method {
    display: flex;
    gap: 20px;
    align-items: flex-start;
    padding: 20px;
    background: var(--bg-secondary);
    border-radius: 12px;
    transition: transform 0.3s ease;
    text-align: left;
    width: 100%;
    max-width: 350px;
}

.contact-method:hover {
    transform: translateY(-2px);
}

.contact-icon {
    width: 50px;
    height: 50px;
    background: var(--primary-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.2rem;
    flex-shrink: 0;
}

.contact-details h3 {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 5px;
}

.contact-details p {
    color: var(--text-primary);
    font-weight: 500;
    margin-bottom: 3px;
}

.contact-details span {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* ===== FOOTER SECTION ===== */
.footer {
    background: #1a1a1a;
    color: white;
    padding-top: 80px;
}

.footer-content {
    margin-bottom: 40px;
}

.footer-main {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 60px;
    margin-bottom: 60px;
}

.footer-brand {
    max-width: 400px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 20px;
}

.footer-logo img {
    width: 40px;
    height: 40px;
}

.footer-logo span {
    font-size: 1.5rem;
    font-weight: 700;
    color: white;
}

.footer-description {
    color: #a0a0a0;
    line-height: 1.6;
    margin-bottom: 30px;
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
}

.footer-title {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 20px;
    color: white;
}

.footer-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.footer-list li {
    margin-bottom: 12px;
}

.footer-list a {
    color: #a0a0a0;
    text-decoration: none;
    transition: color 0.3s ease;
    font-size: 0.95rem;
}

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

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding: 30px 0;
}

.footer-bottom-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.copyright {
    color: #a0a0a0;
    margin: 0;
}

.footer-bottom-links {
    display: flex;
    gap: 30px;
}

.footer-bottom-links a {
    color: #a0a0a0;
    text-decoration: none;
    font-size: 0.9rem;
    transition: color 0.3s ease;
}

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

/* ===== DOWNLOAD BUTTONS ===== */
.download-buttons {
    display: flex;
    gap: 20px;
    margin-bottom: 40px;
}

.download-btn {
    display: flex;
    align-items: center;
    gap: 15px;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 15px;
    padding: 15px 25px;
    color: white;
    text-decoration: none;
    transition: all 0.3s ease;
    min-width: 200px;
}

.download-btn:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: translateY(-2px);
    color: white;
}

.btn-icon {
    font-size: 2rem;
}

.btn-text {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.btn-subtitle {
    font-size: 0.8rem;
    opacity: 0.8;
}

.btn-title {
    font-size: 1.1rem;
    font-weight: 600;
}

/* Hero Specific Download Buttons */
.hero .download-btn {
    background: linear-gradient(135deg, #2d3748 0%, #1a202c 100%);
    border: 2px solid #4a5568;
    box-shadow: 0 8px 25px rgba(45, 55, 72, 0.4);
    position: relative;
    overflow: hidden;
}

.hero .download-btn::before {
    content: "";
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        90deg,
        transparent,
        rgba(255, 255, 255, 0.15),
        transparent
    );
    transition: left 0.5s ease;
}

.hero .download-btn:hover::before {
    left: 100%;
}

.hero .download-btn:hover {
    background: linear-gradient(
        135deg,
        var(--primary-color) 0%,
        var(--primary-dark) 100%
    );
    transform: translateY(-3px);
    box-shadow: 0 12px 35px rgba(114, 217, 162, 0.5);
    border-color: var(--primary-color);
}

.hero .download-btn.app-store {
    background: linear-gradient(135deg, #000000 0%, #333333 100%);
    border-color: #555555;
}

.hero .download-btn.app-store:hover {
    background: linear-gradient(135deg, #1a1a1a 0%, #000000 100%);
    box-shadow: 0 12px 35px rgba(0, 0, 0, 0.6);
    border-color: #000000;
}

.hero .download-btn.google-play {
    background: linear-gradient(135deg, #34a853 0%, #137333 100%);
    border-color: #0f5132;
}

.hero .download-btn.google-play:hover {
    background: linear-gradient(135deg, #28a745 0%, #0f5132 100%);
    box-shadow: 0 12px 35px rgba(52, 168, 83, 0.6);
    border-color: #0a3d26;
}

.hero .btn-subtitle {
    color: #e2e8f0;
}

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

/* Hero Responsive */
@media (max-width: 1024px) {
    .hero-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    .hero-title {
        font-size: 3rem;
    }
    .phone-mockup {
        max-width: 250px;
    }
}

@media (max-width: 768px) {
    .hero {
        padding-top: 100px;
        text-align: center;
    }
    .hero-title {
        font-size: 2.5rem;
    }
    .hero-stats {
        justify-content: center;
        gap: 30px;
    }
    .phone-mockup {
        max-width: 200px;
    }

    /* Features Responsive */
    .section-title {
        font-size: 2rem;
    }
    .features-grid {
        grid-template-columns: 1fr;
    }
    .feature-card {
        padding: 25px 20px;
    }

    /* Assistants Responsive */
    .assistants-grid {
        grid-template-columns: 1fr;
    }
    .assistant-card {
        margin: 0 20px;
    }

    /* Download Responsive */
    .download-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    .download-title {
        font-size: 2.2rem;
    }
    .download-stats {
        justify-content: space-around;
    }
    .gallery-container {
        height: 500px;
    }
    .gallery-slide {
        width: 260px;
    }
    .gallery-slide.prev {
        transform: translate(-110%, -50%) translateZ(0) scale(0.75);
    }
    .gallery-slide.next {
        transform: translate(10%, -50%) translateZ(0) scale(0.75);
    }

    /* Contact Responsive */
    .contact-methods {
        grid-template-columns: 1fr;
    }
    .contact-method {
        flex-direction: column;
        text-align: center;
        gap: 15px;
    }
    .contact-icon {
        margin: 0 auto;
    }

    /* Footer Responsive */
    .footer {
        padding-top: 60px;
    }
    .footer-main {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    .footer-links {
        grid-template-columns: repeat(2, 1fr);
        gap: 30px;
    }
    .footer-bottom-content {
        flex-direction: column;
        gap: 20px;
        text-align: center;
    }
    .footer-bottom-links {
        gap: 20px;
    }

    /* Download Buttons Responsive */
    .download-buttons {
        flex-direction: column;
        align-items: center;
        gap: 15px;
    }
    .download-btn {
        min-width: 250px;
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2rem;
    }
    .hero-description {
        font-size: 1rem;
    }
    .phone-mockup {
        max-width: 170px;
    }

    /* Gallery Mobile */
    .gallery-container {
        height: 450px;
    }
    .gallery-slide {
        width: 220px;
    }
    .gallery-slide.active {
        transform: translate(-50%, -50%) translateZ(50px) scale(0.9);
    }
    .gallery-slide.prev,
    .gallery-slide.next {
        display: none;
    }

    /* Footer Mobile */
    .footer-links {
        grid-template-columns: 1fr;
    }
}