/* ================================
   GiftSarv - Main Stylesheet
   ================================ */

/* ===== CSS Variables ===== */
:root {
    --primary-color: #4CAF50;
    --primary-dark: #388E3C;
    --primary-light: #81C784;
    --secondary-color: #2196F3;
    --secondary-dark: #1976D2;
    --accent-color: #FF9800;
    --text-color: #333;
    --text-light: #666;
    --text-lighter: #999;
    --bg-color: #ffffff;
    --bg-light: #f5f5f5;
    --bg-dark: #e0e0e0;
    --border-color: #ddd;
    --shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    --shadow-hover: 0 5px 20px rgba(0, 0, 0, 0.15);
    --transition: all 0.3s ease;
    --border-radius: 8px;
    --container-width: 1200px;
}

/* ===== Reset & Base Styles ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--bg-color);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

main {
    flex: 1;
}

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

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

ul {
    list-style: none;
}

button {
    cursor: pointer;
    border: none;
    background: none;
    font-family: inherit;
}

/* ===== Container ===== */
.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 20px;
}

/* ===== Typography ===== */
h1, h2, h3, h4, h5, h6 {
    line-height: 1.2;
    margin-bottom: 1rem;
    color: var(--text-color);
    font-weight: 600;
}

h1 {
    font-size: 2.5rem;
}

h2 {
    font-size: 2rem;
}

h3 {
    font-size: 1.5rem;
}

h4 {
    font-size: 1.25rem;
}

p {
    margin-bottom: 1rem;
}

/* ===== Buttons ===== */
.btn {
    display: inline-block;
    padding: 12px 30px;
    border-radius: var(--border-radius);
    font-weight: 500;
    text-align: center;
    transition: var(--transition);
    cursor: pointer;
    font-size: 1rem;
    border: 2px solid transparent;
}

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

.btn-primary:hover {
    background-color: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-hover);
}

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

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

/* ===== Header & Navigation ===== */
header {
    background-color: white;
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.navbar {
    padding: 1rem 0;
}

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

.nav-brand {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
}

.logo {
    width: 40px;
    height: 40px;
}

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

.nav-menu {
    display: flex;
    gap: 2rem;
    align-items: center;
}

.nav-menu li a {
    color: var(--text-color);
    font-weight: 500;
    padding: 8px 0;
    position: relative;
}

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

.nav-menu li a:hover::after,
.nav-menu li a.active::after {
    width: 100%;
}

.nav-menu li a.active {
    color: var(--primary-color);
}

/* Mobile Menu Toggle */
.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: 8px;
    cursor: pointer;
}

.mobile-menu-toggle span {
    width: 25px;
    height: 3px;
    background-color: var(--text-color);
    transition: var(--transition);
    border-radius: 2px;
}

/* ===== Hero Section ===== */
.hero {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 80px 0;
    text-align: center;
}

.hero-content {
    max-width: 700px;
    margin: 0 auto;
}

.hero h1 {
    color: white;
    font-size: 3rem;
    margin-bottom: 1.5rem;
}

.hero-subtitle {
    font-size: 1.25rem;
    margin-bottom: 2rem;
    opacity: 0.95;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

.hero-image {
    animation: fadeInScale 1s ease-out;
}

@keyframes fadeInScale {
    from {
        opacity: 0;
        transform: scale(0.8);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

/* ===== Page Header ===== */
.page-header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 60px 0;
    text-align: center;
}

.page-header h1 {
    color: white;
    margin-bottom: 0.5rem;
}

.page-header p {
    font-size: 1.1rem;
    opacity: 0.95;
}

/* ===== Sections ===== */
section {
    padding: 60px 0;
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
    color: var(--text-color);
}

/* ===== Features Section ===== */
.features {
    background-color: var(--bg-light);
}

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

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

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

.feature-card:hover img {
    transform: scale(1.1);
}

.feature-card img {
    transition: var(--transition);
}

.feature-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.feature-card h3 {
    color: var(--primary-color);
    margin-bottom: 1rem;
}

/* ===== About Preview Section ===== */
.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
}

.about-text h2 {
    color: var(--primary-color);
    margin-bottom: 1.5rem;
}

.about-text p {
    margin-bottom: 1.5rem;
}

.about-image {
    display: flex;
    justify-content: center;
    align-items: center;
}

.about-image img {
    transition: var(--transition);
}

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

.image-placeholder {
    width: 300px;
    height: 300px;
    background: linear-gradient(135deg, var(--primary-light) 0%, var(--primary-color) 100%);
    border-radius: var(--border-radius);
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 8rem;
}

/* ===== How It Works Section ===== */
.how-it-works-preview {
    background-color: var(--bg-light);
}

.steps-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

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

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

.step-card:hover img {
    transform: scale(1.1) rotate(5deg);
}

.step-card img {
    transition: var(--transition);
}

.step-number {
    width: 60px;
    height: 60px;
    background-color: var(--primary-color);
    color: white;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 1.5rem;
    font-weight: bold;
    margin: 0 auto 1rem;
}

.step-card h3 {
    color: var(--primary-color);
    margin-bottom: 1rem;
}

/* ===== Detailed Steps ===== */
.steps-detailed {
    display: flex;
    flex-direction: column;
    gap: 2rem;
    margin: 2rem 0;
}

.step-detailed {
    display: flex;
    gap: 2rem;
    padding: 2rem;
    background-color: var(--bg-light);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    align-items: center;
    transition: var(--transition);
}

.step-detailed:hover {
    transform: translateX(10px);
    box-shadow: var(--shadow-hover);
}

.step-detailed img {
    transition: var(--transition);
}

.step-detailed:hover img {
    transform: scale(1.1);
}

.step-icon {
    width: 60px;
    height: 60px;
    min-width: 60px;
    background-color: var(--primary-color);
    color: white;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 1.5rem;
    font-weight: bold;
}

.step-content h3 {
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.step-content ul {
    list-style: disc;
    margin-left: 1.5rem;
}

.step-content ul li {
    margin-bottom: 0.5rem;
}

/* ===== CTA Section ===== */
.cta {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    text-align: center;
}

.cta h2 {
    color: white;
    margin-bottom: 1rem;
}

.cta p {
    font-size: 1.1rem;
    margin-bottom: 2rem;
}

/* ===== Content Section ===== */
.content-section {
    background-color: white;
}

.content-wrapper {
    max-width: 900px;
    margin: 0 auto;
}

.content-wrapper h2 {
    color: var(--primary-color);
    margin-top: 2rem;
    margin-bottom: 1rem;
}

.content-wrapper h3 {
    color: var(--text-color);
    margin-top: 1.5rem;
    margin-bottom: 1rem;
}

.content-wrapper h4 {
    color: var(--text-color);
    margin-top: 1rem;
    margin-bottom: 0.5rem;
}

.content-wrapper ul,
.content-wrapper ol {
    margin-left: 2rem;
    margin-bottom: 1rem;
}

.content-wrapper ul {
    list-style: disc;
}

.content-wrapper ol {
    list-style: decimal;
}

.content-wrapper li {
    margin-bottom: 0.5rem;
}

/* ===== Info Boxes ===== */
.info-box {
    background-color: var(--bg-light);
    padding: 1.5rem;
    border-radius: var(--border-radius);
    border-left: 4px solid var(--primary-color);
    margin: 1.5rem 0;
}

.info-box h4 {
    color: var(--primary-color);
    margin-top: 0;
}

.info-box ul {
    list-style: disc;
    margin-left: 1.5rem;
}

/* ===== Benefits Grid ===== */
.benefits-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin: 2rem 0;
}

.benefit-item {
    padding: 1.5rem;
    background-color: var(--bg-light);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
}

.benefit-item h4 {
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

/* ===== Use Cases ===== */
.use-cases {
    columns: 2;
    column-gap: 2rem;
}

.use-cases li {
    break-inside: avoid;
    margin-bottom: 0.5rem;
}

/* ===== Contact Section ===== */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    margin-bottom: 3rem;
}

.contact-form-section h2,
.contact-info-section h2 {
    color: var(--primary-color);
    margin-bottom: 1.5rem;
}

/* ===== Forms ===== */
.contact-form {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.form-group {
    display: flex;
    flex-direction: column;
}

.form-group label {
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--text-color);
}

.form-group input,
.form-group textarea {
    padding: 12px;
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius);
    font-family: inherit;
    font-size: 1rem;
    transition: var(--transition);
}

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

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

.form-message {
    padding: 1rem;
    border-radius: var(--border-radius);
    margin-top: 1rem;
    display: none;
}

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

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

/* ===== Contact Info ===== */
.contact-details {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.contact-item {
    display: flex;
    gap: 1rem;
    align-items: flex-start;
}

.contact-icon {
    font-size: 1.5rem;
    min-width: 30px;
}

.contact-text h3 {
    color: var(--primary-color);
    font-size: 1.1rem;
    margin-bottom: 0.5rem;
}

.contact-text p {
    margin-bottom: 0;
}

.business-hours {
    margin-top: 2rem;
    padding: 1.5rem;
    background-color: var(--bg-light);
    border-radius: var(--border-radius);
}

.business-hours h3 {
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.business-hours ul {
    list-style: none;
}

.business-hours li {
    padding: 0.5rem 0;
    border-bottom: 1px solid var(--border-color);
}

.business-hours li:last-child {
    border-bottom: none;
}

/* ===== FAQ Section ===== */
.faq-section {
    margin-top: 2rem;
}

.faq-item {
    margin-bottom: 2rem;
    padding: 1.5rem;
    background-color: var(--bg-light);
    border-radius: var(--border-radius);
}

.faq-item h3 {
    color: var(--primary-color);
    margin-bottom: 1rem;
    font-size: 1.2rem;
}

.faq-list {
    list-style: none;
}

.faq-list li {
    padding: 0.75rem 0;
    padding-left: 1.5rem;
    position: relative;
}

.faq-list li::before {
    content: '•';
    position: absolute;
    left: 0;
    color: var(--primary-color);
    font-size: 1.5rem;
}

/* ===== Legal Content ===== */
.legal-content {
    line-height: 1.8;
}

.legal-content h2 {
    margin-top: 2.5rem;
    padding-top: 1rem;
    border-top: 2px solid var(--border-color);
}

.legal-content h2:first-child {
    margin-top: 0;
    border-top: none;
    padding-top: 0;
}

.contact-box {
    background-color: var(--bg-light);
    padding: 1.5rem;
    border-radius: var(--border-radius);
    border-left: 4px solid var(--primary-color);
    margin: 1.5rem 0;
}

.contact-box p {
    margin-bottom: 0;
}

/* ===== Footer ===== */
footer {
    background-color: #2c3e50;
    color: white;
    padding: 3rem 0 1rem;
    margin-top: auto;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-section h4 {
    color: white;
    margin-bottom: 1rem;
}

.footer-section p {
    color: rgba(255, 255, 255, 0.8);
}

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

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

.footer-section ul li a {
    color: rgba(255, 255, 255, 0.8);
    transition: var(--transition);
}

.footer-section ul li a:hover {
    color: white;
    padding-left: 5px;
}

.contact-info li {
    margin-bottom: 1rem;
    line-height: 1.6;
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.8);
}

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

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

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

/* ===== Responsive Design ===== */
@media (max-width: 768px) {
    /* Typography */
    h1 { font-size: 2rem; }
    h2 { font-size: 1.75rem; }
    h3 { font-size: 1.25rem; }
    
    .hero h1 {
        font-size: 2.5rem;
    }
    
    /* Navigation */
    .nav-menu {
        position: fixed;
        top: 70px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 70px);
        background-color: white;
        flex-direction: column;
        padding: 2rem;
        gap: 0;
        transition: var(--transition);
        box-shadow: var(--shadow);
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .nav-menu li {
        width: 100%;
        text-align: center;
        padding: 1rem 0;
        border-bottom: 1px solid var(--border-color);
    }
    
    .mobile-menu-toggle {
        display: flex;
    }
    
    .mobile-menu-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(8px, 8px);
    }
    
    .mobile-menu-toggle.active span:nth-child(2) {
        opacity: 0;
    }
    
    .mobile-menu-toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(7px, -7px);
    }
    
    /* Sections */
    .about-content {
        grid-template-columns: 1fr;
    }
    
    .contact-grid {
        grid-template-columns: 1fr;
    }
    
    .step-detailed {
        flex-direction: column;
    }
    
    .use-cases {
        columns: 1;
    }
    
    .hero-buttons {
        flex-direction: column;
    }
    
    .image-placeholder {
        width: 250px;
        height: 250px;
        font-size: 6rem;
    }
    
    .hero-image img {
        max-width: 400px !important;
    }
    
    .step-detailed img {
        width: 80px !important;
        height: 80px !important;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }
    
    section {
        padding: 40px 0;
    }
    
    .hero {
        padding: 60px 0;
    }
    
    .hero h1 {
        font-size: 2rem;
    }
    
    .hero-image img {
        max-width: 300px !important;
    }
    
    .btn {
        padding: 10px 20px;
        font-size: 0.9rem;
    }
    
    .features-grid,
    .steps-grid,
    .benefits-grid {
        grid-template-columns: 1fr;
    }
    
    .page-header img {
        max-width: 200px !important;
    }
    
    .step-detailed img {
        width: 60px !important;
        height: 60px !important;
    }
}

/* ===== Animation ===== */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in {
    animation: fadeIn 0.6s ease-out;
}

/* ===== Print Styles ===== */
@media print {
    header, footer, .cta, .hero-buttons {
        display: none;
    }
    
    body {
        color: black;
        background: white;
    }
    
    a {
        text-decoration: underline;
    }
}