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

:root {
    /* Black and white theme */
    --accent: #000; /* black */
    --accent-dark: #111; /* darker black */
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: #111;
    overflow-x: hidden;
}

/* Apply consistent font family throughout */
* {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

/* Header Styles */
header {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.1);
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 5%;
    max-width: 1200px;
    margin: 0 auto;
}

.logo {
    font-size: 1.8rem;
    font-weight: bold;
    color: #000;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    text-decoration: none;
}

.logo img {
    height: 28px;
    width: auto;
    display: block;
}

.brand-name {
    font-size: 1.1rem;
    font-weight: 700;
    line-height: 1;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-links a {
    text-decoration: none;
    color: #111;
    font-weight: 500;
    transition: color 0.3s ease;
}

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

/* Hero Section */
.hero {
    height: 100vh;
    background: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #111;
    margin-top: 0;
    padding: 0 5%;
}

.hero-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: 1400px;
    width: 100%;
    gap: 2rem;
}

.hero-content {
    flex: 1;
    text-align: left;
    max-width: 500px;
}

.hero-visual {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero h1 {
    font-size: 5rem;
    margin-bottom: 1rem;
    font-weight: 700;
    animation: fadeInUp 1s ease-out;
}

.hero p {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    opacity: 0.9;
    animation: fadeInUp 1s ease-out 0.2s both;
}

.hero-slogan {
    font-size: 2.2rem;
    font-weight: 500;
    margin-bottom: 2rem;
    opacity: 0.85;
    line-height: 1.4;
    animation: fadeInUp 1s ease-out 0.2s both;
}

.cta-buttons {
    display: flex;
    gap: 1rem;
    justify-content: flex-start;
    animation: fadeInUp 1s ease-out 0.4s both;
}

.cta-primary, .cta-secondary {
    padding: 1rem 2rem;
    border: none;
    border-radius: 50px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.cta-primary {
    background: var(--accent);
    color: #fff;
}

.cta-primary:hover {
    background: var(--accent-dark);
    transform: translateY(-2px);
}

.cta-secondary {
    background: transparent;
    color: var(--accent);
    border: 2px solid var(--accent);
}

.cta-secondary:hover {
    background: var(--accent);
    color: #fff;
    transform: translateY(-2px);
}

/* 3D Floating Folders Styles */
.hero-image {
    position: relative;
    max-width: 600px;
    height: 500px;
    perspective: 1200px;
    transform-style: preserve-3d;
    padding-top: 3rem;
}

.folder-stack {
    position: relative;
    width: 100%;
    height: 100%;
}

.folder {
    position: absolute;
    background: #fff;
    border-radius: 0 12px 12px 12px;
    padding: 3rem 2rem 2rem;
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.15);
    display: flex;
    align-items: center;
    transition: all 0.5s cubic-bezier(0.16, 1, 0.3, 1);
    border: 1px solid rgba(0, 0, 0, 0.05);
    overflow: hidden;
}

.folder::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 15px;
    background: linear-gradient(90deg, #f0f0f0, #e0e0e0);
    border-radius: 6px 6px 0 0;
}

.folder i {
    font-size: 3.5rem;
    margin-right: 1.5rem;
    color: #000;
    filter: drop-shadow(0 3px 3px rgba(0,0,0,0.1));
}

.folder span {
    font-weight: 600;
    font-size: 1.4rem;
    color: #333;
    text-shadow: 0 1px 1px rgba(0,0,0,0.05);
}

.folder-1 {
    width: 320px; height: 200px;
    top: 30px; left: 50%;
    transform: translateX(-50%) rotate(-3deg);
    z-index: 3; background: #fff;
    animation: float1 8s ease-in-out infinite;
}

.folder-2 {
    width: 300px; height: 220px;
    top: 60px; left: calc(50% - 100px);
    transform: translateX(-50%) rotate(2deg);
    z-index: 2; background: #f9f9f9;
    animation: float2 10s ease-in-out infinite 0.5s;
}

.folder-3 {
    width: 280px; height: 210px;
    top: 50px; left: calc(50% + 80px);
    transform: translateX(-50%) rotate(4deg);
    z-index: 1; background: #f0f0f0;
    animation: float3 9s ease-in-out infinite 1s;
}

@keyframes float1 {
    0%, 100% { transform: translateX(-50%) translateY(0) rotate(-3deg); }
    50%      { transform: translateX(-50%) translateY(-15px) rotate(-5deg); }
}

@keyframes float2 {
    0%, 100% { transform: translateX(-50%) translateY(0) rotate(2deg); }
    50%      { transform: translateX(-50%) translateY(-20px) rotate(4deg); }
}

@keyframes float3 {
    0%, 100% { transform: translateX(-50%) translateY(0) rotate(4deg); }
    50%      { transform: translateX(-50%) translateY(-10px) rotate(2deg); }
}

.folder:hover {
    transform: translateY(-5px) rotate(0deg);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.15);
    z-index: 10;
}

.folder:hover::before {
    background: linear-gradient(90deg, #e0e0e0, #d0d0d0);
}

/* Value Proposition Section */
.value-proposition {
    padding: 5rem 5%;
    background: #f8f9fa;
    text-align: center;
}

.value-content {
    max-width: 1200px;
    margin: 0 auto;
}

.value-proposition h2 {
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
    color: #111;
}

.value-description {
    font-size: 1.2rem;
    color: #444;
    margin-bottom: 3rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.benefits-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.benefit-item {
    background: white;
    padding: 2rem;
    border-radius: 12px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.benefit-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.12);
}

.benefit-item h3 {
    font-size: 1.3rem;
    margin-bottom: 1rem;
    color: #111;
    font-weight: 600;
}

.benefit-item p {
    color: #666;
    line-height: 1.6;
}

/* Card Icons (shared between benefits and feature cards) */
.card-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 56px;
    height: 56px;
    border-radius: 12px;
    background: #f1f1f1;
    color: #000;
    margin: 0 auto 1rem auto;
    box-shadow: 0 6px 18px rgba(0,0,0,0.08);
}

.card-icon i {
    font-size: 1.4rem;
}

/* Features Section */
.features {
    padding: 5rem 5%;
    background: #fff;
}

.features h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
    color: #000;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.feature-card {
    background: white;
    padding: 2rem;
    border-radius: 15px;
    text-align: center;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

.feature-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: #111;
    font-weight: 600;
}

.feature-card p {
    color: #444;
    line-height: 1.6;
}

/* About Section */
.about {
    padding: 5rem 5%;
    background: #fff;
}

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

.about h2 {
    font-size: 2.5rem;
    margin-bottom: 2rem;
    color: #111;
}

.about p {
    font-size: 1.1rem;
    margin-bottom: 1.5rem;
    color: #444;
    line-height: 1.8;
}

.about-highlights {
    list-style: none;
    padding: 0;
    margin: 1rem auto 1.5rem auto;
    max-width: 700px;
    text-align: left;
}

.about-highlights li {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.5rem 0;
    color: #333;
}

.about-highlights i {
    color: #000;
    background: #f1f1f1;
    border-radius: 8px;
    width: 32px;
    height: 32px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 12px rgba(0,0,0,0.08);
}

/* Plans (Free vs Premium) */
.plans-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
    margin-top: 2rem;
}

.plan-card {
    background: #fff;
    border: 1px solid rgba(0,0,0,0.06);
    border-radius: 16px;
    padding: 1.5rem;
    text-align: center;
    box-shadow: 0 10px 25px rgba(0,0,0,0.08);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.plan-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 18px 35px rgba(0,0,0,0.12);
}

.plan-card h3 {
    font-size: 1.4rem;
    margin: 0.5rem 0 0.75rem 0;
}

.plan-card p {
    color: #444;
    margin-bottom: 1rem;
}

.plan-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 64px;
    height: 64px;
    border-radius: 14px;
    background: #f4f4f4;
    color: #000;
    margin-bottom: 0.75rem;
    box-shadow: 0 8px 20px rgba(0,0,0,0.08);
}

.plan-icon i {
    font-size: 1.5rem;
}

.plan-perks {
    list-style: none;
    padding: 0;
    margin: 0 0 1rem 0;
    text-align: left;
}

.plan-perks li {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    padding: 0.35rem 0;
    color: #333;
}

.plan-perks i {
    color: #000;
}

.plan-premium {
    border-color: rgba(0,0,0,0.12);
    background: linear-gradient(180deg, #ffffff 0%, #f9f9f9 100%);
}

.plan-card .cta-primary,
.plan-card .cta-secondary {
    width: 100%;
    margin-top: 0.25rem;
}

/* Contact Section */
.contact {
    padding: 5rem 5%;
    background: #fff;
}

.contact h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
    color: #111;
}

.contact-form {
    max-width: 600px;
    margin: 0 auto;
}

.contact-form input,
.contact-form textarea {
    width: 100%;
    padding: 1rem;
    margin-bottom: 1rem;
    border: 2px solid #e2e8f0;
    border-radius: 10px;
    font-size: 1rem;
    transition: border-color 0.3s ease;
}

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

.submit-btn {
    width: 100%;
    padding: 1rem;
    background: var(--accent);
    color: #fff;
    border: none;
    border-radius: 10px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.3s ease;
}

.submit-btn:hover {
    background: var(--accent-dark);
}

/* Footer */
footer {
    background: #fff;
    color: #111;
    padding: 2rem 5%;
    text-align: center;
}

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

.social-links {
    margin-top: 1rem;
}

.social-links a {
    color: #111;
    text-decoration: none;
    margin: 0 1rem;
    transition: color 0.3s ease;
}

.social-links a:hover {
    color: var(--accent);
}

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

/* Responsive Design */
@media (max-width: 900px) {
    .nav-links {
        display: none;
    }
    
    .hero-container {
        flex-direction: column;
        gap: 2rem;
        text-align: center;
    }
    
    .hero-content {
        text-align: center;
        max-width: 100%;
    }
    
    .hero h1 {
        font-size: 3.5rem;
    }
    
    .hero p {
        font-size: 1rem;
    }
    
    .hero-slogan {
        font-size: 1.8rem;
    }
    
    .cta-buttons {
        flex-direction: column;
        align-items: center;
        justify-content: center;
    }
    
    .cta-primary, .cta-secondary {
        width: 200px;
    }
    
    .hero-image {
        max-width: 400px;
        height: 300px;
        padding-top: 2rem;
    }
    
    .folder {
        padding: 1.5rem 1rem 1rem;
    }
    
    .folder i {
        font-size: 2rem;
        margin-right: 1rem;
    }
    
    .folder span {
        font-size: 1rem;
    }
    
    .folder-1 {
        width: 200px; height: 140px;
    }
    
    .folder-2 {
        width: 180px; height: 150px;
    }
    
    .folder-3 {
        width: 160px; height: 140px;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .features h2,
    .about h2,
    .contact h2 {
        font-size: 2rem;
    }
}

@media (max-width: 480px) {
    nav {
        padding: 1rem 3%;
    }
    
    .hero h1 {
        font-size: 2.8rem;
    }
    
    .hero-slogan {
        font-size: 1.5rem;
    }
    
    .features,
    .about,
    .contact {
        padding: 3rem 3%;
    }
}