:root {
    --bg-color: #051805;
    --accent-gold: #D4AF37;
    --accent-gold-hover: #F8E79B;
    --text-light: #F0F2F0;
    --text-muted: #A0B0A0;
    --glass-bg: rgba(255, 255, 255, 0.05);
    --glass-border: rgba(212, 175, 55, 0.2);
    --font-heading: 'Inter', sans-serif;
    --font-body: 'Inter', sans-serif;
    --transition-speed: 0.3s;
}

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

/* GLOBAL IMAGE FIX */
img {
    max-width: 100%;
    height: auto;
    display: block;
}

body {
    background-color: var(--bg-color);
    color: var(--text-light);
    font-family: var(--font-body);
    overflow-x: hidden;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Background Texture */
.background-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at 50% 50%, #0a2e0a 0%, #020a02 100%);
    z-index: -1;
    pointer-events: none;
}

/* Header */
header {
    padding: 2rem 4rem;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 1.5rem;
    background: linear-gradient(to bottom, rgba(5, 24, 5, 0.9), transparent);
}

.brand-container {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.logo {
    width: 80px;
    height: 80px;
    object-fit: contain;
    filter: drop-shadow(0 0 10px rgba(212, 175, 55, 0.3));
}

.site-title {
    font-family: var(--font-heading);
    color: var(--accent-gold);
    font-size: 3rem;
    letter-spacing: 2px;
    text-transform: uppercase;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.5);
}

/* Navigation */
.main-nav {
    margin-left: 0.5rem;
    width: 100%;
}

.main-nav ul {
    display: flex;
    list-style: none;
    gap: 3rem;
}

.main-nav ul li a {
    text-decoration: none;
    color: var(--text-light);
    font-family: var(--font-heading);
    font-size: 1.1rem;
    font-weight: 700;
    position: relative;
    padding-bottom: 5px;
    transition: color var(--transition-speed);
}

.main-nav ul li a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0%;
    height: 2px;
    background-color: var(--accent-gold);
    transition: width var(--transition-speed);
}

.main-nav ul li a:hover {
    color: var(--accent-gold);
}

.main-nav ul li a:hover::after {
    width: 100%;
}

/* Main Content Styles */
main {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: flex-start;
    padding: 1rem;
    width: 100%;
}

.hero {
    width: 100%;
    max-width: 1600px;
}

/* Maestro Section (Homepage) */
.maestro-section {
    width: 100%;
    display: flex;
    flex-direction: row;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 1rem;
    margin-top: 0;
}

.maestro-logo {
    width: 50px;
    height: 50px;
    object-fit: contain;
    filter: drop-shadow(0 0 5px rgba(212, 175, 55, 0.5));
}

.maestro-title {
    font-family: var(--font-heading);
    color: var(--accent-gold);
    font-size: 2rem;
    letter-spacing: 2px;
    text-transform: uppercase;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.5);
    margin: 0;
}

/* Cards (General) */
.cards-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 3rem;
    width: 100%;
}

.card {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 20px;
    padding: 3rem 2rem;
    text-align: center;
    transition: all 0.4s ease;
    cursor: pointer;
    position: relative;
    overflow: hidden;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.card h2 {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--text-light);
}

.card p {
    color: var(--text-muted);
    font-size: 1rem;
    line-height: 1.6;
}

.icon-wrapper {
    font-size: 4rem;
    color: var(--accent-gold);
    margin-bottom: 1.5rem;
    transition: transform 0.4s ease;
}

.card:hover .icon-wrapper {
    transform: scale(1.1) rotate(5deg);
    color: var(--accent-gold-hover);
}

/* Shelves & Content Pages */
.category-page {
    padding-bottom: 4rem;
}

.section-title {
    font-family: var(--font-heading);
    color: var(--accent-gold);
    font-size: 2.2rem;
    margin: 0 auto 1.5rem auto;
    text-align: center;
    padding: 0;
    border: none;
    width: 100%;
}

.shelf-container {
    display: flex;
    flex-direction: column;
    gap: 2.5rem;
    padding: 0 1rem;
    width: 100%;
    max-width: 100%;
    margin: 0 auto;
}

.shelf-category {
    margin-bottom: 1rem;
}

.shelf-category h3 {
    font-family: var(--font-body);
    font-weight: 500;
    font-size: 1.5rem;
    color: var(--text-light);
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 10px;
}

.shelf-category h3::after {
    content: '';
    flex: 1;
    height: 1px;
    background: linear-gradient(to right, var(--glass-border), transparent);
}

.shelf-row {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 1rem;
    width: 100%;
}

/* Responsive Shelves */
@media (max-width: 1400px) {
    .shelf-row {
        grid-template-columns: repeat(4, 1fr);
    }
}

@media (max-width: 900px) {
    .shelf-row {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 600px) {
    .shelf-row {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* Content Cards (Books/Courses) */
.content-card {
    position: relative;
    width: 100%;
    aspect-ratio: 9/16;
    background: linear-gradient(135deg, #1a3a1a 0%, #051805 100%);
    border-radius: 8px;
    overflow: hidden;
    cursor: pointer;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    border: 1px solid rgba(255, 255, 255, 0.1);
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    text-decoration: none;
    animation: float 6s ease-in-out infinite;
}

.card-cover-img {
    width: 100%;
    height: 75%;
    object-fit: cover;
    display: block;
}

.card-info {
    height: 25%;
    background: rgba(5, 24, 5, 0.95);
    padding: 0.8rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-top: 1px solid rgba(212, 175, 55, 0.1);
}

/* Card Text Wrapper to stack title and subtitle */
.card-text {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.card-title-tbd {
    font-family: var(--font-heading);
    color: var(--accent-gold);
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: 2px;
    line-height: 1.1;
}

.card-subtitle-tbd {
    font-family: var(--font-body);
    font-size: 0.65rem;
    color: var(--text-muted);
    letter-spacing: 0.5px;
    text-transform: uppercase;
}

.card-play {
    color: var(--text-light);
    font-size: 0.9rem;
    opacity: 0;
    transition: opacity 0.3s;
}

.content-card:hover .card-play {
    opacity: 1;
}

/* Animation Keyframes */
@keyframes float {
    0% {
        transform: translateY(0px);
    }

    50% {
        transform: translateY(-8px);
    }

    100% {
        transform: translateY(0px);
    }
}

/* Apply Float to Main Page Cards too */
#card-inspiracional,
#card-desenvolvimento,
#card-financeira,
#card-artes {
    animation: float 6s ease-in-out infinite;
}

/* Stagger Animations */
.content-card:nth-child(2n),
#card-desenvolvimento {
    animation-delay: 1s;
}

.content-card:nth-child(3n),
#card-artes {
    animation-delay: 2s;
}

.content-card:nth-child(4n),
#card-financeira {
    animation-delay: 0.5s;
}

.content-card:nth-child(5n) {
    animation-delay: 1.5s;
}

/* Hover Effects (Shared) */
.card:hover,
.content-card:hover {
    transform: scale(1.05) translateY(-10px) !important;
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.4), 0 0 20px rgba(212, 175, 55, 0.2);
    border-color: var(--accent-gold);
    animation-play-state: paused;
}

/* Footer and Back Nav */
footer {
    text-align: center;
    padding: 2rem;
    color: var(--text-muted);
    font-size: 0.9rem;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.back-btn {
    color: var(--text-muted);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-family: var(--font-body);
    transition: color 0.3s;
}

.back-btn:hover {
    color: var(--accent-gold);
}

/* Responsive Header */
@media (max-width: 900px) {
    header {
        align-items: center;
        text-align: center;
        padding: 2rem;
    }

    .brand-container {
        flex-direction: column;
        gap: 1rem;
    }

    .main-nav ul {
        flex-wrap: wrap;
        justify-content: center;
        gap: 1.5rem;
    }

    .shelf-container,
    .section-title {
        padding-left: 1rem;
        padding-right: 1rem;
    }
}