/* ========================================
   CROWDFUNDING PLATFORM - MODERN UI/UX
   Indigo + Pink Theme with Animations
======================================== */

@import url('https://fonts.googleapis.com/css2?family=Montserrat:wght@300;400;500;600;700;800;900&family=Open+Sans:wght@300;400;500;600;700&display=swap');

/* ========================================
   CSS VARIABLES
======================================== */
:root {
    /* Primary Colors */
    --primary-indigo: #4F46E5;
    --primary-dark: #4338CA;
    --accent-pink: #EC4899;
    --success-green: #22C55E;
    --warning-yellow: #F59E0B;
    --info-blue: #3B82F6;
    
    /* Backgrounds */
    --bg-light: #F8FAFC;
    --bg-white: #FFFFFF;
    --bg-gray: #F1F5F9;
    --bg-dark: #1E293B;
    
    /* Text Colors */
    --text-primary: #0F172A;
    --text-secondary: #475569;
    --text-gray: #64748B;
    --text-light: #94A3B8;
    
    /* Gradients */
    --gradient-primary: linear-gradient(135deg, #4F46E5 0%, #7C3AED 100%);
    --gradient-pink: linear-gradient(135deg, #EC4899 0%, #F472B6 100%);
    --gradient-success: linear-gradient(135deg, #22C55E 0%, #4ADE80 100%);
    --gradient-hero: linear-gradient(135deg, rgba(79, 70, 229, 0.95) 0%, rgba(236, 72, 153, 0.9) 100%);
    
    /* Shadows */
    --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);
    --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    
    /* Typography */
    --font-heading: 'Montserrat', sans-serif;
    --font-body: 'Open Sans', sans-serif;
    
    /* Transitions */
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-body);
    font-size: 16px;
    line-height: 1.7;
    color: var(--text-primary);
    background: var(--bg-light);
    overflow-x: hidden;
}

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

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

/* ========================================
   TYPOGRAPHY
======================================== */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.2;
    color: var(--text-primary);
}

h1 { font-size: clamp(2.5rem, 6vw, 4.5rem); }
h2 { font-size: clamp(2rem, 5vw, 3.5rem); }
h3 { font-size: clamp(1.75rem, 4vw, 2.5rem); }
h4 { font-size: clamp(1.5rem, 3vw, 2rem); }
h5 { font-size: clamp(1.25rem, 2vw, 1.5rem); }

p {
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 1.5rem;
}

.text-gradient {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.text-pink {
    color: var(--accent-pink);
}

.text-success {
    color: var(--success-green);
}

/* ========================================
   LAYOUT
======================================== */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

section {
    padding: 5rem 0;
    position: relative;
}

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

.section-badge {
    display: inline-block;
    padding: 0.5rem 1.5rem;
    background: linear-gradient(135deg, rgba(79, 70, 229, 0.1) 0%, rgba(236, 72, 153, 0.1) 100%);
    border: 2px solid var(--primary-indigo);
    border-radius: 50px;
    color: var(--primary-indigo);
    font-size: 0.875rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: 1.5rem;
}

.section-title {
    font-size: clamp(2.5rem, 5vw, 3.5rem);
    margin-bottom: 1.5rem;
}

.section-description {
    font-size: 1.25rem;
    color: var(--text-secondary);
    max-width: 700px;
    margin: 0 auto;
}

/* ========================================
   BUTTONS
======================================== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem 2.5rem;
    font-family: var(--font-heading);
    font-size: 1rem;
    font-weight: 600;
    border-radius: 50px;
    transition: var(--transition);
    cursor: pointer;
    border: none;
    white-space: nowrap;
}

.btn-primary {
    background: var(--gradient-primary);
    color: white;
    box-shadow: 0 4px 15px rgba(79, 70, 229, 0.3);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(79, 70, 229, 0.4);
}

.btn-pink {
    background: var(--gradient-pink);
    color: white;
    box-shadow: 0 4px 15px rgba(236, 72, 153, 0.3);
}

.btn-pink:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(236, 72, 153, 0.4);
}

.btn-success {
    background: var(--gradient-success);
    color: white;
    box-shadow: 0 4px 15px rgba(34, 197, 94, 0.3);
}

.btn-success:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(34, 197, 94, 0.4);
}

.btn-outline {
    background: transparent;
    color: var(--primary-indigo);
    border: 2px solid var(--primary-indigo);
}

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

.btn-large {
    padding: 1.25rem 3rem;
    font-size: 1.125rem;
}

/* ========================================
   CARDS
======================================== */
.card {
    background: white;
    border-radius: 20px;
    box-shadow: var(--shadow-md);
    overflow: hidden;
    transition: var(--transition);
}

.card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-2xl);
}

.card-image {
    position: relative;
    height: 250px;
    overflow: hidden;
}

.card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition-slow);
}

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

.card-badge {
    position: absolute;
    top: 1rem;
    right: 1rem;
    padding: 0.5rem 1rem;
    background: var(--gradient-pink);
    color: white;
    font-size: 0.75rem;
    font-weight: 700;
    border-radius: 50px;
    text-transform: uppercase;
}

.card-body {
    padding: 2rem;
}

.card-title {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.card-text {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
}

/* ========================================
   PROGRESS BAR
======================================== */
.progress-wrapper {
    margin: 1.5rem 0;
}

.progress-bar {
    height: 8px;
    background: #E2E8F0;
    border-radius: 50px;
    overflow: hidden;
    margin-bottom: 1rem;
}

.progress-fill {
    height: 100%;
    background: var(--gradient-success);
    border-radius: 50px;
    transition: width 1s ease-out;
}

.progress-stats {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.875rem;
}

.progress-raised {
    font-weight: 700;
    color: var(--success-green);
    font-size: 1.125rem;
}

.progress-goal {
    color: var(--text-gray);
}

/* ========================================
   GRID LAYOUTS
======================================== */
.grid {
    display: grid;
    gap: 2rem;
}

.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

@media (max-width: 1024px) {
    .grid-4 { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
    .grid-2,
    .grid-3,
    .grid-4 { grid-template-columns: 1fr; }
}

/* ========================================
   NAVIGATION
======================================== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    padding: 1rem 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.navbar.scrolled {
    padding: 0.5rem 0;
    box-shadow: var(--shadow-md);
}

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

.nav-logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--primary-indigo);
}

.logo-icon {
    width: 45px;
    height: 45px;
    background: var(--gradient-primary);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.5rem;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 2.5rem;
    list-style: none;
}

.nav-link {
    font-weight: 600;
    color: var(--text-primary);
    position: relative;
    padding: 0.5rem 0;
}

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

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

.mobile-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
}

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

/* ========================================
   HERO SECTION
======================================== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    padding-top: 80px;
    background: linear-gradient(135deg, rgba(79, 70, 229, 0.95) 0%, rgba(236, 72, 153, 0.9) 100%),
                url('https://images.unsplash.com/photo-1559027615-cd4628902d4a?w=1920&h=1080&fit=crop') center/cover;
    color: white;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background: url('data:image/svg+xml,<svg width="100" height="100" xmlns="http://www.w3.org/2000/svg"><circle cx="50" cy="50" r="1" fill="white" opacity="0.1"/></svg>');
    animation: float 20s ease-in-out infinite;
}

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

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 800px;
}

.hero-badge {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    background: rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: 50px;
    margin-bottom: 2rem;
    animation: fadeInDown 0.8s ease-out;
}

@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.hero-title {
    font-size: clamp(3rem, 7vw, 5rem);
    margin-bottom: 2rem;
    animation: fadeInUp 0.8s ease-out 0.2s both;
}

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

.hero-description {
    font-size: clamp(1.125rem, 2vw, 1.5rem);
    margin-bottom: 3rem;
    opacity: 0.95;
    animation: fadeInUp 0.8s ease-out 0.4s both;
}

.hero-buttons {
    display: flex;
    gap: 1.5rem;
    flex-wrap: wrap;
    animation: fadeInUp 0.8s ease-out 0.6s both;
}

.hero-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 3rem;
    margin-top: 5rem;
    padding-top: 3rem;
    border-top: 1px solid rgba(255, 255, 255, 0.2);
}

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

.hero-stat-number {
    font-size: 3rem;
    font-weight: 800;
    font-family: var(--font-heading);
    display: block;
    margin-bottom: 0.5rem;
}

.hero-stat-label {
    font-size: 1rem;
    opacity: 0.9;
}

/* ========================================
   CATEGORY ICONS
======================================== */
.category-card {
    background: white;
    border-radius: 20px;
    padding: 2.5rem;
    text-align: center;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
    cursor: pointer;
}

.category-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-2xl);
}

.category-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 1.5rem;
    background: var(--gradient-primary);
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.5rem;
    color: white;
    transition: var(--transition);
}

.category-card:hover .category-icon {
    transform: rotateY(360deg);
}

.category-title {
    font-size: 1.25rem;
    margin-bottom: 0.75rem;
}

.category-count {
    color: var(--text-gray);
    font-size: 0.875rem;
}

/* ========================================
   TIMELINE
======================================== */
.timeline {
    position: relative;
    max-width: 900px;
    margin: 0 auto;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    width: 4px;
    height: 100%;
    background: var(--gradient-primary);
}

.timeline-item {
    position: relative;
    margin-bottom: 4rem;
}

.timeline-item:nth-child(odd) .timeline-content {
    margin-left: auto;
}

.timeline-content {
    background: white;
    border-radius: 20px;
    padding: 2rem;
    box-shadow: var(--shadow-lg);
    width: 45%;
    position: relative;
}

.timeline-number {
    position: absolute;
    left: 50%;
    top: 0;
    transform: translateX(-50%);
    width: 60px;
    height: 60px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.5rem;
    font-weight: 700;
    box-shadow: 0 0 0 10px var(--bg-light);
}

/* ========================================
   SLIDER (TESTIMONIALS/SUCCESS STORIES)
======================================== */
.slider-container {
    position: relative;
    overflow: hidden;
    padding: 2rem 0;
}

.slider-wrapper {
    display: flex;
    transition: transform 0.5s ease-in-out;
}

.slider-slide {
    min-width: 100%;
    padding: 0 1rem;
}

.testimonial-card {
    background: white;
    border-radius: 20px;
    padding: 3rem;
    box-shadow: var(--shadow-lg);
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.testimonial-image {
    width: 100px;
    height: 100px;
    border-radius: 50%;
    margin: 0 auto 2rem;
    border: 5px solid var(--primary-indigo);
    overflow: hidden;
}

.testimonial-quote {
    font-size: 1.25rem;
    font-style: italic;
    color: var(--text-secondary);
    margin-bottom: 2rem;
    line-height: 1.8;
}

.testimonial-author {
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

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

.slider-controls {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-top: 2rem;
}

.slider-btn {
    width: 50px;
    height: 50px;
    background: var(--gradient-primary);
    color: white;
    border: none;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    transition: var(--transition);
}

.slider-btn:hover {
    transform: scale(1.1);
}

/* ========================================
   LOGO CAROUSEL
======================================== */
.logo-carousel {
    overflow: hidden;
    padding: 2rem 0;
}

.logo-track {
    display: flex;
    gap: 3rem;
    animation: scroll 30s linear infinite;
}

@keyframes scroll {
    0% { transform: translateX(0); }
    100% { transform: translateX(-50%); }
}

.logo-item {
    flex-shrink: 0;
    width: 150px;
    height: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: white;
    border-radius: 15px;
    padding: 1rem;
    box-shadow: var(--shadow-sm);
    filter: grayscale(100%);
    opacity: 0.7;
    transition: var(--transition);
}

.logo-item:hover {
    filter: grayscale(0);
    opacity: 1;
    transform: scale(1.05);
}

/* ========================================
   CTA BANNER
======================================== */
.cta-banner {
    background: var(--gradient-hero);
    color: white;
    padding: 5rem 2rem;
    text-align: center;
    border-radius: 30px;
    margin: 3rem 0;
    position: relative;
    overflow: hidden;
}

.cta-banner::before {
    content: '';
    position: absolute;
    inset: 0;
    background: url('data:image/svg+xml,<svg width="100" height="100" xmlns="http://www.w3.org/2000/svg"><circle cx="50" cy="50" r="1" fill="white" opacity="0.1"/></svg>');
}

.cta-content {
    position: relative;
    z-index: 2;
    max-width: 700px;
    margin: 0 auto;
}

.cta-title {
    font-size: clamp(2rem, 5vw, 3rem);
    margin-bottom: 1.5rem;
}

.cta-description {
    font-size: 1.25rem;
    margin-bottom: 2.5rem;
    opacity: 0.95;
}

/* ========================================
   FOOTER
======================================== */
.footer {
    background: var(--bg-dark);
    color: white;
    padding: 4rem 0 2rem;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.5fr;
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-brand {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 1.5rem;
    font-weight: 800;
    margin-bottom: 1.5rem;
}

.footer-description {
    color: #94A3B8;
    margin-bottom: 2rem;
}

.footer-title {
    font-size: 1.25rem;
    margin-bottom: 1.5rem;
}

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

.footer-links li {
    margin-bottom: 1rem;
}

.footer-links a {
    color: #94A3B8;
}

.footer-links a:hover {
    color: white;
    padding-left: 5px;
}

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

.social-link {
    width: 45px;
    height: 45px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    transition: var(--transition);
}

.social-link:hover {
    background: var(--primary-indigo);
    transform: translateY(-3px);
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: #94A3B8;
}

/* ========================================
   SCROLL TO TOP
======================================== */
.scroll-top {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 55px;
    height: 55px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.5rem;
    box-shadow: var(--shadow-lg);
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    cursor: pointer;
    z-index: 999;
}

.scroll-top.visible {
    opacity: 1;
    visibility: visible;
}

.scroll-top:hover {
    transform: translateY(-5px);
}

/* ========================================
   MOBILE PREVIEW BUTTON
======================================== */
.mobile-preview-btn {
    position: fixed;
    bottom: 2rem;
    left: 2rem;
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 15px 25px;
    background: linear-gradient(135deg, #4F46E5, #EC4899);
    color: white;
    border-radius: 50px;
    font-weight: 700;
    font-size: 16px;
    box-shadow: 0 10px 30px rgba(79, 70, 229, 0.4);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    cursor: pointer;
    z-index: 999;
    text-decoration: none;
    border: none;
}

.mobile-preview-btn i {
    font-size: 20px;
}

.mobile-preview-btn:hover {
    transform: translateY(-5px) scale(1.05);
    box-shadow: 0 15px 40px rgba(79, 70, 229, 0.5);
}

.mobile-preview-btn:active {
    transform: translateY(-2px) scale(1.02);
}

@media (max-width: 768px) {
    .mobile-preview-btn {
        padding: 12px 20px;
        font-size: 14px;
        bottom: 5rem;
        left: 1rem;
    }
    
    .mobile-preview-btn span {
        display: none;
    }
    
    .mobile-preview-btn {
        width: 50px;
        height: 50px;
        border-radius: 50%;
        justify-content: center;
        padding: 0;
    }
}

/* ========================================
   UTILITIES
======================================== */
.text-center { text-align: center; }
.mt-4 { margin-top: 3rem; }
.mb-4 { margin-bottom: 3rem; }

/* ========================================
   ANIMATIONS
======================================== */
.fade-in {
    animation: fadeIn 0.8s ease-out;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.slide-in-left {
    animation: slideInLeft 0.8s ease-out;
}

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.slide-in-right {
    animation: slideInRight 0.8s ease-out;
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.zoom-in {
    animation: zoomIn 0.5s ease-out;
}

@keyframes zoomIn {
    from {
        opacity: 0;
        transform: scale(0.9);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

/* Counter Animation */
.counter {
    display: inline-block;
}