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

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background-color: #1a1a2e;
    color: #e0e0e0;
    min-height: 100vh;
}

/* Header */
.app-header {
    background: linear-gradient(135deg, #e63946 0%, #0f3460 50%, #3498db 100%);
    padding: 1.25rem 1.5rem;
    border-bottom: 3px solid #f4d03f;
    position: relative;
    overflow: hidden;
}

.app-header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='60' height='60' viewBox='0 0 60 60'%3E%3Ccircle cx='30' cy='30' r='14' fill='none' stroke='rgba(255,255,255,0.08)' stroke-width='2'/%3E%3Cline x1='16' y1='30' x2='44' y2='30' stroke='rgba(255,255,255,0.08)' stroke-width='2'/%3E%3Ccircle cx='30' cy='30' r='4' fill='none' stroke='rgba(255,255,255,0.08)' stroke-width='2'/%3E%3C/svg%3E");
    background-size: 60px 60px;
    pointer-events: none;
    z-index: 0;
}

.header-content {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    gap: 1.5rem;
    flex-wrap: wrap;
    position: relative;
    z-index: 1;
}

.app-title {
    font-size: 1.75rem;
    font-weight: 800;
    color: #fff;
    letter-spacing: 1px;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.header-nav {
    display: flex;
    gap: 0.5rem;
    margin-left: auto;
    flex-wrap: wrap;
}

.nav-link {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    padding: 0.4rem 1rem;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
    transition: all 0.2s ease;
    border: 1px solid rgba(255, 255, 255, 0.3);
}

.nav-link:hover {
    color: #fff;
    background: rgba(255, 255, 255, 0.15);
    border-color: rgba(255, 255, 255, 0.6);
}

.nav-link.active {
    color: #1a1a2e;
    background: #f4d03f;
    border-color: #f4d03f;
}

/* Main */
.app-main {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1.5rem;
}

/* Hero */
.market-hero {
    text-align: center;
    padding: 2rem 1rem;
}

.market-hero h2 {
    font-size: 2rem;
    color: #f4d03f;
    margin-bottom: 0.5rem;
}

.hero-subtitle {
    color: #aaa;
    font-size: 1rem;
}

/* Sections */
.search-section {
    margin-bottom: 2rem;
}

.search-section h3 {
    font-size: 1.4rem;
    color: #f4d03f;
    margin-bottom: 0.4rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid rgba(244, 208, 63, 0.3);
}

.section-subtitle {
    color: #aaa;
    font-size: 0.9rem;
    margin-bottom: 1rem;
}

/* Search Form */
.search-form {
    background: #16213e;
    border-radius: 12px;
    padding: 1.5rem;
    border: 1px solid #0f3460;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
    margin-bottom: 1rem;
}

.form-group label {
    display: block;
    font-size: 0.85rem;
    color: #aaa;
    margin-bottom: 0.3rem;
    font-weight: 600;
}

.form-group select,
.form-group input {
    width: 100%;
    padding: 0.6rem 0.8rem;
    border-radius: 8px;
    border: 1px solid #0f3460;
    background: #1a1a2e;
    color: #e0e0e0;
    font-size: 0.9rem;
    appearance: auto;
}

.form-group select:focus,
.form-group input:focus {
    outline: none;
    border-color: #f4d03f;
    box-shadow: 0 0 0 2px rgba(244, 208, 63, 0.2);
}

.btn-generate {
    display: block;
    width: 100%;
    padding: 0.8rem 1.5rem;
    border: none;
    border-radius: 8px;
    background: linear-gradient(135deg, #e63946, #c0392b);
    color: #fff;
    font-size: 1rem;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.2s ease;
}

.btn-generate:hover {
    background: linear-gradient(135deg, #ff4757, #e63946);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(230, 57, 70, 0.4);
}

/* Search Results */
.search-results {
    margin-top: 1.5rem;
}

.marketplace-links {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.marketplace-card {
    background: #16213e;
    border-radius: 10px;
    padding: 1.2rem;
    border: 1px solid #0f3460;
    transition: all 0.2s ease;
}

.marketplace-card:hover {
    border-color: #3498db;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(52, 152, 219, 0.2);
}

.marketplace-card .mp-name {
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 0.4rem;
    color: #fff;
}

.marketplace-card .mp-desc {
    font-size: 0.8rem;
    color: #aaa;
    margin-bottom: 0.8rem;
}

.marketplace-card .mp-link {
    display: inline-block;
    padding: 0.4rem 1rem;
    background: #3498db;
    color: #fff;
    text-decoration: none;
    border-radius: 6px;
    font-size: 0.85rem;
    font-weight: 600;
    transition: background 0.2s ease;
}

.marketplace-card .mp-link:hover {
    background: #2980b9;
}

/* Search Tips */
.search-tips {
    background: rgba(244, 208, 63, 0.08);
    border: 1px solid rgba(244, 208, 63, 0.25);
    border-radius: 10px;
    padding: 1.2rem;
}

.search-tips h4 {
    color: #f4d03f;
    font-size: 0.95rem;
    margin-bottom: 0.6rem;
}

.search-tips ul {
    list-style: none;
    padding: 0;
}

.search-tips li {
    padding: 0.3rem 0;
    font-size: 0.85rem;
    color: #ccc;
    padding-left: 1.2rem;
    position: relative;
}

.search-tips li::before {
    content: '\26A0';
    position: absolute;
    left: 0;
    font-size: 0.75rem;
}

/* Disclaimer */
.market-disclaimer {
    background: rgba(230, 57, 70, 0.08);
    border: 1px solid rgba(230, 57, 70, 0.25);
    border-radius: 10px;
    padding: 1.2rem;
    font-size: 0.82rem;
    color: #ccc;
    line-height: 1.5;
    margin-top: 2rem;
}

/* Footer */
.app-footer {
    text-align: center;
    padding: 1.5rem;
    color: #666;
    font-size: 0.8rem;
    border-top: 1px solid #0f3460;
    margin-top: 2rem;
}

/* Responsive */
@media (max-width: 768px) {
    .header-content {
        flex-direction: column;
        align-items: flex-start;
    }

    .header-nav {
        margin-left: 0;
        flex-wrap: wrap;
    }

    .nav-link {
        font-size: 0.75rem;
        padding: 0.3rem 0.7rem;
    }

    .form-row {
        grid-template-columns: 1fr;
    }

    .marketplace-links {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .app-main {
        padding: 1rem;
    }

    .market-hero h2 {
        font-size: 1.5rem;
    }

    .search-form {
        padding: 1rem;
    }
}

/* Mobile Navigation */
.nav-toggle {
    display: none;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: 8px;
    padding: 0.5rem;
    cursor: pointer;
    margin-left: auto;
}
.nav-toggle span {
    display: block;
    width: 24px;
    height: 3px;
    background: #fff;
    margin: 4px 0;
    border-radius: 2px;
}
@media (max-width: 900px) {
    .nav-toggle { display: block; }
    .header-nav { display: none; width: 100%; flex-direction: column; gap: 0.5rem; margin-top: 1rem; padding-top: 1rem; border-top: 1px solid rgba(255, 255, 255, 0.2); }
    .header-nav.active { display: flex; }
    .nav-link { text-align: center; padding: 0.75rem 1rem; font-size: 1rem; }
    .header-content { flex-wrap: wrap; }
    .app-title { font-size: 1.4rem; }
}
@media (max-width: 480px) {
    .app-header { padding: 1rem; }
    .app-title { font-size: 1.2rem; }
    .nav-link { font-size: 0.9rem; padding: 0.6rem 0.75rem; }
}