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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    line-height: 1.6;
    color: #043B73;
    background: #ffffff;
    overflow-x: hidden;
    scroll-behavior: smooth;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
}

/* Header */
.header {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid #e5e7eb;
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
}

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

.logo {
    display: flex;
    align-items: center;
    color: #043B73;
    font-weight: 700;
    font-size: 1.25rem;
    text-decoration: none;
}

.logo-img {
    width: 120px;
    height: 50px;
    object-fit: contain;
    margin-right: 0.5rem;
}

.nav-links {
    display: none;
    list-style: none;
    gap: 1.5rem;
}

.nav-links a {
    text-decoration: none;
    color: #043B73;
    font-weight: 500;
    padding: 0.5rem 1rem;
    border-radius: 0.375rem;
    transition: all 0.3s ease;
}

.nav-links a:hover {
    color: #F5821F;
    background: rgba(245, 130, 31, 0.1);
}

.btn-primary {
    background: #F5821F;
    color: white;
    padding: 0.75rem 1.5rem;
    border-radius: 0.5rem;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    box-shadow: 0 2px 4px rgba(245, 130, 31, 0.2);
}

.btn-primary:hover {
    background: #043B73;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(4, 59, 115, 0.3);
}

/* Vibe Word */
.vibe-word {
    color: #F5821F;
    font-weight: 700;
}

/* Main Content */
.main-content {
    margin-top: 80px;
    padding: 4rem 0;
}

.doc-header {
    text-align: center;
    margin-bottom: 4rem;
    padding: 4rem 0 2rem;
    background: linear-gradient(135deg, #ffffff 0%, #f8fafc 100%);
    position: relative;
}

.doc-header h1 {
    font-size: 3.5rem;
    font-weight: 700;
    color: #043B73;
    margin-bottom: 1.5rem;
    line-height: 1.2;
}

.doc-header p {
    font-size: 1.3rem;
    color: #6b7280;
    max-width: 700px;
    margin: 0 auto;
    line-height: 1.6;
}

/* Content Sections */
.content-section {
    margin-bottom: 4rem;
    padding: 4rem 0;
}

.content-section:nth-child(even) {
    background: linear-gradient(135deg, #f8fafc 0%, #ffffff 100%);
}

.section-title {
    font-size: 2.8rem;
    font-weight: 700;
    color: #043B73;
    margin-bottom: 2rem;
    text-align: center;
    position: relative;
}

.section-title::after {
    content: '';
    position: absolute;
    left: 50%;
    bottom: -15px;
    width: 80px;
    height: 4px;
    background: linear-gradient(90deg, #F5821F, #fbbf24);
    border-radius: 2px;
    transform: translateX(-50%);
}

.section-content {
    max-width: 900px;
    margin: 0 auto;
    font-size: 1.2rem;
    line-height: 1.8;
    color: #4b5563;
}

.section-content h3 {
    font-size: 1.8rem;
    font-weight: 600;
    color: #043B73;
    margin: 3rem 0 1.5rem;
}

.section-content ul {
    margin: 1.5rem 0;
    padding-left: 2rem;
}

.section-content li {
    margin-bottom: 0.75rem;
}

/* Feature Grid */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2.5rem;
    margin: 4rem 0;
}

.feature-card {
    background: white;
    padding: 2.5rem;
    border-radius: 1.5rem;
    box-shadow: 0 8px 20px -2px rgba(4, 59, 115, 0.08);
    text-align: center;
    transition: all 0.4s ease;
    border: 1px solid #f3f4f6;
}

.feature-card:hover {
    transform: translateY(-10px) scale(1.02);
    box-shadow: 0 25px 50px -12px rgba(4, 59, 115, 0.25);
    border-color: #F5821F;
}

.feature-card h4 {
    font-size: 1.4rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: #043B73;
}

.feature-card p {
    color: #6b7280;
    line-height: 1.6;
    font-size: 1rem;
}

/* Clean Prompts Section */
.prompts-section {
    background: linear-gradient(135deg, #f8fafc 0%, #ffffff 100%);
    padding: 5rem 0;
    position: relative;
    overflow: hidden;
}

.prompts-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 25% 75%, rgba(245, 130, 31, 0.03) 0%, transparent 50%),
        radial-gradient(circle at 75% 25%, rgba(4, 59, 115, 0.03) 0%, transparent 50%);
    pointer-events: none;
}

.prompts-list {
    max-width: 800px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    position: relative;
    z-index: 2;
}

.prompt-item {
    background: white;
    border: 2px solid #e2e8f0;
    border-radius: 1rem;
    padding: 2rem;
    cursor: pointer;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.prompt-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(245, 130, 31, 0.05), transparent);
    transition: left 0.6s ease;
}

.prompt-item:hover {
    border-color: #F5821F;
    transform: translateY(-5px) translateX(10px);
    box-shadow: 0 20px 40px rgba(245, 130, 31, 0.15);
}

.prompt-item:hover::before {
    left: 100%;
}

.prompt-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1rem;
}

.prompt-number {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, #F5821F, #fbbf24);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 700;
    font-size: 1.1rem;
    box-shadow: 0 4px 12px rgba(245, 130, 31, 0.3);
}

.prompt-category {
    font-size: 0.8rem;
    font-weight: 600;
    color: #F5821F;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.prompt-text {
    color: #043B73;
    font-size: 1.1rem;
    line-height: 1.6;
    margin: 0;
    font-weight: 500;
}

.copy-hint {
    position: absolute;
    top: 1rem;
    right: 1rem;
    color: #6b7280;
    font-size: 0.8rem;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.prompt-item:hover .copy-hint {
    opacity: 1;
}

.copy-feedback {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: #10b981;
    color: white;
    padding: 0.75rem 1.5rem;
    border-radius: 2rem;
    font-weight: 600;
    font-size: 0.9rem;
    opacity: 0;
    pointer-events: none;
    z-index: 10;
}

.floating-dots {
    position: absolute;
    width: 6px;
    height: 6px;
    background: rgba(245, 130, 31, 0.2);
    border-radius: 50%;
    animation: floatDots 8s ease-in-out infinite;
}

.floating-dots:nth-child(1) {
    top: 20%;
    left: 10%;
    animation-delay: 0s;
}

.floating-dots:nth-child(2) {
    top: 70%;
    right: 15%;
    animation-delay: 3s;
}

.floating-dots:nth-child(3) {
    bottom: 30%;
    left: 80%;
    animation-delay: 6s;
}

@keyframes floatDots {
    0%, 100% { transform: translateY(0px) scale(1); opacity: 0.2; }
    50% { transform: translateY(-30px) scale(1.2); opacity: 0.6; }
}

/* Security Section */
.security-section {
    background: #043B73;
    color: white;
    padding: 5rem 0;
}

.security-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2.5rem;
    margin: 4rem 0;
}

.security-item {
    text-align: center;
    padding: 2.5rem;
    background: rgba(0,0,0,0.15);
    border-radius: 1.5rem;
    border: 1px solid rgba(255,255,255,0.2);
    transition: all 0.4s ease;
    backdrop-filter: blur(10px);
}

.security-item:hover {
    background: rgba(0,0,0,0.25);
    transform: translateY(-8px) scale(1.02);
    border-color: rgba(245, 130, 31, 0.3);
}

.security-item h4 {
    font-size: 1.3rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: #F5821F;
}

.security-item p {
    color: #d1d5db;
    font-size: 1rem;
    line-height: 1.6;
}

/* Animations */
.animate-on-scroll {
    opacity: 0;
    transition: opacity 0.8s ease, transform 0.8s ease;
}

/* Mobile Responsive */
@media (min-width: 768px) {
    .nav-links {
        display: flex;
    }

    .doc-header h1 {
        font-size: 4rem;
    }

    .section-title {
        font-size: 3.2rem;
    }
}

@media (max-width: 768px) {
    .doc-header h1 {
        font-size: 2.5rem;
    }

    .section-title {
        font-size: 2.2rem;
    }

    .features-grid {
        grid-template-columns: 1fr;
    }

    .prompts-list {
        gap: 1rem;
    }
    
    .prompt-item {
        padding: 1.5rem;
    }
    
    .prompt-text {
        font-size: 1rem;
    }
}