/* ===== CSS Variables & Reset ===== */
:root {
    --primary: #2ECC71;
    --primary-dark: #27AE60;
    --bg-light: #F5F5F5;
    --text-primary: #1A1A1A;
    --text-secondary: #666666;
    --accent-error: #E74C3C;
    --white: #ffffff;
    --shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 10px 40px rgba(0, 0, 0, 0.12);
    --radius: 12px;
    --radius-lg: 20px;
    --transition: all 0.3s ease;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', sans-serif;
    background: var(--bg-light);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

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

/* ===== Typography ===== */
h1, h2, h3, h4 {
    font-weight: 700;
    line-height: 1.2;
}

h1 { font-size: clamp(2.5rem, 5vw, 4rem); }
h2 { font-size: clamp(2rem, 4vw, 3rem); }
h3 { font-size: 1.25rem; }

p { color: var(--text-secondary); }

/* ===== Buttons ===== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 28px;
    border-radius: 50px;
    font-weight: 600;
    font-size: 0.95rem;
    text-decoration: none;
    transition: var(--transition);
    cursor: pointer;
    border: 2px solid transparent;
}

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

.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(46, 204, 113, 0.3);
}

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

.btn-outline {
    background: transparent;
    border-color: var(--primary);
    color: var(--primary);
}

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

.btn-outline-dark {
    background: transparent;
    border-color: var(--text-primary);
    color: var(--text-primary);
}

.btn-outline-dark:hover {
    background: var(--text-primary);
    color: var(--white);
}

.btn-lg {
    padding: 16px 36px;
    font-size: 1rem;
}

.btn-block {
    width: 100%;
}

/* ===== Navigation ===== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    padding: 15px 0;
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.05);
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 8px;
    text-decoration: none;
    font-weight: 800;
    font-size: 1.5rem;
    color: var(--text-primary);
}

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

.logo-text {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 35px;
}

.nav-links a {
    text-decoration: none;
    color: var(--text-secondary);
    font-weight: 500;
    font-size: 0.95rem;
    transition: var(--transition);
    position: relative;
}

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

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

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

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

.nav-toggle span {
    width: 25px;
    height: 3px;
    background: var(--text-primary);
    border-radius: 3px;
    transition: var(--transition);
}

.nav-cta {
    padding: 10px 24px;
}

/* ===== Hero Section ===== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 120px 0 80px;
    background: linear-gradient(135deg, #f8fff8 0%, var(--bg-light) 100%);
}

.hero-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.hero-badge {
    display: inline-block;
    background: rgba(46, 204, 113, 0.1);
    color: var(--primary-dark);
    padding: 8px 16px;
    border-radius: 50px;
    font-size: 0.9rem;
    font-weight: 500;
    margin-bottom: 20px;
}

.hero-content h1 {
    margin-bottom: 20px;
}

.highlight {
    color: var(--primary);
}

.hero-content > p {
    font-size: 1.15rem;
    margin-bottom: 30px;
    max-width: 500px;
}

.hero-cta {
    display: flex;
    gap: 15px;
    margin-bottom: 50px;
    flex-wrap: wrap;
}

.coming-soon-badge {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    background: rgba(46, 204, 113, 0.1);
    border: 2px dashed var(--primary);
    padding: 12px 20px;
    border-radius: var(--radius);
    color: var(--primary-dark);
    font-weight: 500;
}

.coming-soon-badge i {
    font-size: 1.2rem;
}

/* Phone Mockup */
.hero-image {
    display: flex;
    justify-content: center;
}

.phone-mockup {
    width: 280px;
    height: 560px;
    background: var(--text-primary);
    border-radius: 40px;
    padding: 12px;
    box-shadow: var(--shadow-lg);
    position: relative;
}

.phone-mockup::before {
    content: '';
    position: absolute;
    top: 20px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 25px;
    background: #000;
    border-radius: 20px;
}

.phone-screen {
    background: var(--white);
    height: 100%;
    border-radius: 30px;
    overflow: hidden;
}

.phone-screen img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.app-header {
    display: flex;
    justify-content: space-between;
    font-size: 0.8rem;
    margin-bottom: 15px;
}

.app-search {
    background: var(--bg-light);
    padding: 12px 15px;
    border-radius: 10px;
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-bottom: 20px;
}

.app-categories {
    display: flex;
    gap: 10px;
    margin-bottom: 20px;
}

.cat-item {
    background: rgba(46, 204, 113, 0.1);
    padding: 8px 12px;
    border-radius: 20px;
    font-size: 0.75rem;
    white-space: nowrap;
}

.app-products {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
}

.product-card {
    background: var(--bg-light);
    padding: 15px;
    border-radius: 12px;
    text-align: center;
}

.product-img {
    font-size: 2rem;
    margin-bottom: 8px;
}

.product-card span {
    display: block;
    font-size: 0.8rem;
}

.product-card .price {
    color: var(--primary);
    font-weight: 600;
    margin-top: 5px;
}

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

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

.section-tag {
    display: inline-block;
    background: rgba(46, 204, 113, 0.1);
    color: var(--primary-dark);
    padding: 6px 16px;
    border-radius: 50px;
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 15px;
}

.section-header h2 {
    margin-bottom: 10px;
}

.section-header p {
    font-size: 1.1rem;
}

/* ===== How It Works ===== */
.how-it-works {
    background: var(--white);
}

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

.step {
    text-align: center;
    padding: 40px 30px;
    position: relative;
}

.step-number {
    position: absolute;
    top: 10px;
    right: 30px;
    font-size: 4rem;
    font-weight: 800;
    color: rgba(46, 204, 113, 0.1);
}

.step-icon {
    font-size: 2.5rem;
    color: var(--primary);
    margin-bottom: 20px;
}

.step h3 {
    margin-bottom: 10px;
}

/* ===== Features ===== */
.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.feature {
    background: var(--white);
    padding: 35px 30px;
    border-radius: var(--radius-lg);
    transition: var(--transition);
}

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

.feature-icon {
    font-size: 2rem;
    color: var(--primary);
    margin-bottom: 20px;
    width: 60px;
    height: 60px;
    background: rgba(46, 204, 113, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.feature h3 {
    margin-bottom: 10px;
}

/* ===== Gallery Section ===== */
.gallery {
    background: var(--white);
}

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

.gallery-item {
    border-radius: var(--radius-lg);
    overflow: hidden;
    background: #1A1A1A;
    border: 3px solid #1A1A1A;
    position: relative;
}

.gallery-item img {
    width: 100%;
    height: auto;
    display: block;
    transition: var(--transition);
}

.gallery-item:hover img {
    transform: scale(1.05);
}

/* ===== Users Section ===== */
.users {
    background: var(--white);
}

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

.user-card {
    background: var(--bg-light);
    padding: 40px 30px;
    border-radius: var(--radius-lg);
    text-align: center;
    transition: var(--transition);
    display: flex;
    flex-direction: column;
}

.user-card.featured {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: var(--white);
    transform: scale(1.05);
}

.user-card.featured p,
.user-card.featured li {
    color: rgba(255, 255, 255, 0.9);
}

.user-icon {
    font-size: 2.5rem;
    color: var(--primary);
    margin-bottom: 20px;
}

.user-card.featured .user-icon {
    color: var(--white);
}

.user-card h3 {
    margin-bottom: 15px;
}

.user-features {
    list-style: none;
    text-align: left;
    margin: 25px 0;
    flex-grow: 1;
}

.user-features li {
    padding: 8px 0;
    padding-left: 25px;
    position: relative;
    color: var(--text-secondary);
}

.user-features li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--primary);
    font-weight: bold;
}

.user-card.featured .user-features li::before {
    color: var(--white);
}

.user-card .btn {
    margin-top: auto;
}

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

.about-text .section-tag {
    margin-bottom: 20px;
}

.about-text h2 {
    margin-bottom: 25px;
}

.about-text p {
    margin-bottom: 20px;
    font-size: 1.05rem;
}

.founder-info {
    display: flex;
    align-items: center;
    gap: 20px;
    margin-top: 35px;
    padding: 25px;
    background: var(--white);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
}

.founder-avatar {
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-weight: 700;
    font-size: 1.3rem;
}

.founder-details {
    display: flex;
    flex-direction: column;
}

.founder-name {
    font-weight: 700;
    font-size: 1.15rem;
    color: var(--text-primary);
    text-decoration: none;
    transition: var(--transition);
}

.founder-name:hover {
    color: var(--primary);
}

.founder-title {
    color: var(--primary);
    font-weight: 500;
    font-size: 0.9rem;
}

.founder-meta {
    color: var(--text-secondary);
    font-size: 0.85rem;
}

.vision-card {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: var(--white);
    padding: 50px 40px;
    border-radius: var(--radius-lg);
}

.vision-card h3 {
    font-size: 1.5rem;
    margin-bottom: 15px;
}

.vision-card p {
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 30px;
}

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

.dev-status {
    display: flex;
    align-items: center;
    gap: 10px;
    background: rgba(255, 255, 255, 0.2);
    padding: 12px 20px;
    border-radius: var(--radius);
    margin-top: 10px;
}

.dev-status i {
    font-size: 1.2rem;
}

/* ===== Download Section ===== */
.download {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    text-align: center;
    color: var(--white);
}

.coming-soon-icon {
    font-size: 4rem;
    margin-bottom: 20px;
    opacity: 0.9;
}

.download h2 {
    margin-bottom: 15px;
}

.download p {
    color: rgba(255, 255, 255, 0.9);
    font-size: 1.1rem;
    margin-bottom: 35px;
}

.download-buttons {
    display: flex;
    justify-content: center;
    gap: 20px;
    flex-wrap: wrap;
}

.store-btn {
    display: flex;
    align-items: center;
    gap: 12px;
    background: var(--text-primary);
    color: var(--white);
    padding: 14px 28px;
    border-radius: var(--radius);
    text-decoration: none;
    transition: var(--transition);
}

.store-btn.disabled {
    opacity: 0.7;
    cursor: not-allowed;
}

.store-btn:not(.disabled):hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.store-icon {
    font-size: 1.8rem;
}

.store-text {
    text-align: left;
}

.store-text span {
    display: block;
    font-size: 0.75rem;
    opacity: 0.8;
}

.store-text strong {
    font-size: 1.1rem;
}

/* ===== Contact Section ===== */
.contact {
    background: var(--white);
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: start;
}

.contact-info .section-tag {
    margin-bottom: 15px;
}

.contact-info h2 {
    margin-bottom: 15px;
}

.contact-info > p {
    margin-bottom: 35px;
}

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

.contact-item {
    display: flex;
    align-items: center;
    gap: 15px;
}

.contact-icon {
    font-size: 1.2rem;
    width: 50px;
    height: 50px;
    background: rgba(46, 204, 113, 0.1);
    color: var(--primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.contact-item strong {
    display: block;
    margin-bottom: 3px;
}

.contact-item span {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.contact-form {
    background: var(--bg-light);
    padding: 40px;
    border-radius: var(--radius-lg);
}

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

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 15px 20px;
    border: 2px solid transparent;
    border-radius: var(--radius);
    font-family: inherit;
    font-size: 1rem;
    background: var(--white);
    transition: var(--transition);
}

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

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

/* ===== Footer ===== */
.footer {
    background: var(--text-primary);
    color: var(--white);
    padding: 80px 0 30px;
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 50px;
}

.footer-brand p {
    color: rgba(255, 255, 255, 0.7);
    margin-top: 15px;
    max-width: 280px;
}

.footer-brand .logo-text {
    -webkit-text-fill-color: var(--white);
}

.footer-links h4 {
    margin-bottom: 20px;
    font-size: 1rem;
}

.footer-links a {
    display: block;
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    padding: 8px 0;
    transition: var(--transition);
}

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

.footer-bottom {
    display: flex;
    justify-content: space-between;
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-bottom p {
    color: rgba(255, 255, 255, 0.5);
    font-size: 0.9rem;
}

/* ===== Responsive Design ===== */
@media (max-width: 1024px) {
    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero-content > p {
        margin: 0 auto 30px;
    }

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

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

    .hero-image {
        order: -1;
    }

    .phone-mockup {
        width: 240px;
        height: 480px;
    }

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

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

    .user-card.featured {
        transform: scale(1);
    }

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

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

@media (max-width: 768px) {
    .nav-links {
        position: fixed;
        top: 70px;
        left: 0;
        right: 0;
        background: var(--white);
        flex-direction: column;
        padding: 30px;
        gap: 20px;
        box-shadow: var(--shadow);
        transform: translateY(-150%);
        opacity: 0;
        transition: var(--transition);
    }

    .nav-links.active {
        transform: translateY(0);
        opacity: 1;
    }

    .nav-toggle {
        display: flex;
    }

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

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

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

    .nav-cta {
        display: none;
    }

    section {
        padding: 70px 0;
    }

    .steps-grid,
    .features-grid,
    .users-grid,
    .gallery-grid {
        grid-template-columns: 1fr;
    }

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

    .step {
        padding: 30px 20px;
    }

    .step-number {
        font-size: 3rem;
        right: 20px;
    }

    .founder-info {
        flex-direction: column;
        text-align: center;
    }

    .vision-stats {
        justify-content: center;
    }

    .contact-form {
        padding: 30px 20px;
    }

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

    .footer-brand p {
        margin: 15px auto 0;
    }

    .footer-bottom {
        flex-direction: column;
        gap: 10px;
        text-align: center;
    }
}

@media (max-width: 480px) {
    h1 { font-size: 2rem; }
    h2 { font-size: 1.75rem; }

    .hero {
        padding: 100px 0 60px;
    }

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

    .hero-cta .btn {
        width: 100%;
    }

    .hero-stats {
        flex-direction: column;
        gap: 20px;
    }

    .gallery-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 15px;
    }

    .phone-mockup {
        width: 220px;
        height: 440px;
    }

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

    .store-btn {
        width: 100%;
        max-width: 280px;
        justify-content: center;
    }
}

/* ===== Animations ===== */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.hero-content,
.hero-image {
    animation: fadeInUp 0.8s ease forwards;
}

.hero-image {
    animation-delay: 0.2s;
}