/* ==========================================================================
   Cozy Canvas Studio CSS Design System
   Warm Minimalist / Hygge Palette & Premium Micro-Animations
   ========================================================================== */

/* Variables & Design Tokens */
:root {
    --bg-cream: #FFFFFF;
    --bg-soft: #F8FAFC;
    --text-espresso: #0F172A;
    --text-charcoal: #334155;
    --text-light: #64748B;
    
    /* Trusted Navy & Muted Gold Accent System */
    --accent-navy: #1B365D;
    --accent-terracotta: #1B365D; /* Maps trusted navy to main action accents */
    --accent-sage: #4A5D78;       /* Medium steel blue for supporting metadata */
    --accent-gold: #C5A880;       /* Gold remains for refined publisher highlights */
    
    --card-bg: #FFFFFF;
    --card-border: rgba(27, 54, 93, 0.08); /* Sophisticated subtle navy border */
    
    --font-heading: 'Outfit', sans-serif;
    --font-serif: 'Playfair Display', serif;
    --font-body: 'Inter', sans-serif;
    
    --transition-smooth: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    --transition-fast: all 0.2s ease-out;
    
    --shadow-soft: 0 4px 20px rgba(27, 54, 93, 0.03);
    --shadow-medium: 0 12px 30px rgba(27, 54, 93, 0.06);
    --shadow-large: 0 24px 50px rgba(27, 54, 93, 0.1);
}

/* Base Resets */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
    background-color: var(--bg-cream);
    color: var(--text-espresso);
    font-family: var(--font-body);
}

body {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    overflow-x: hidden;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

/* Scrollbar Customization */
::-webkit-scrollbar {
    width: 10px;
}
::-webkit-scrollbar-track {
    background: var(--bg-cream);
}
::-webkit-scrollbar-thumb {
    background: #E8DFD3;
    border-radius: 5px;
    border: 2px solid var(--bg-cream);
}
::-webkit-scrollbar-thumb:hover {
    background: var(--accent-gold);
}

/* Utility Typography */
h1, h2, h3, h4 {
    font-family: var(--font-heading);
    font-weight: 600;
    line-height: 1.25;
}

p {
    color: var(--text-charcoal);
}

strong {
    font-weight: 600;
}

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

.highlight {
    color: var(--accent-terracotta);
    font-family: var(--font-serif);
    font-style: italic;
    font-weight: 700;
}

/* Button Component */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 24px;
    border-radius: 30px;
    font-family: var(--font-heading);
    font-size: 0.95rem;
    font-weight: 500;
    cursor: pointer;
    border: 1px solid transparent;
    transition: var(--transition-smooth);
}

.btn-primary {
    background-color: var(--text-espresso);
    color: var(--bg-cream);
}
.btn-primary:hover {
    background-color: var(--accent-terracotta);
    transform: translateY(-2px);
    box-shadow: var(--shadow-soft);
}

.btn-secondary {
    background-color: transparent;
    color: var(--text-espresso);
    border-color: var(--card-border);
}
.btn-secondary:hover {
    background-color: var(--card-bg);
    border-color: var(--text-espresso);
    transform: translateY(-2px);
}

.btn-buy-now {
    background-color: var(--accent-gold);
    color: var(--text-espresso);
    font-weight: 600;
    width: 100%;
}
.btn-buy-now:hover {
    background-color: var(--text-espresso);
    color: var(--bg-cream);
    transform: translateY(-2px);
    box-shadow: var(--shadow-medium);
}

.btn-look-inside {
    background-color: rgba(255, 255, 255, 0.9);
    color: var(--text-espresso);
    border: 1px solid var(--text-espresso);
    font-weight: 500;
    box-shadow: var(--shadow-soft);
}
.btn-look-inside:hover {
    background-color: var(--text-espresso);
    color: var(--bg-cream);
}

.btn-notify {
    background-color: transparent;
    color: var(--text-light);
    border-color: var(--card-border);
    font-size: 0.9rem;
    width: 100%;
}
.btn-notify:hover {
    border-color: var(--accent-terracotta);
    color: var(--accent-terracotta);
    background-color: rgba(212, 122, 96, 0.05);
}

/* D-None Helper */
.d-none {
    display: none !important;
}

/* ==========================================================================
   Header Style
   ========================================================================== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background-color: rgba(250, 246, 240, 0.8);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--card-border);
    transition: var(--transition-smooth);
}

.header-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 16px 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
}

.logo-image {
    width: 40px;
    height: 40px;
    object-fit: contain;
    mix-blend-mode: multiply;
}

.logo-text {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    line-height: 1.1;
}

.logo-serif {
    font-family: var(--font-serif);
    font-size: 1.45rem;
    font-weight: 700;
    color: var(--text-espresso);
    letter-spacing: -0.5px;
}

.logo-sans {
    font-family: var(--font-heading);
    font-size: 0.62rem;
    font-weight: 700;
    letter-spacing: 2px;
    color: var(--accent-terracotta);
    margin-top: 2px;
}

.nav-menu {
    display: flex;
    gap: 32px;
}

.nav-link {
    font-family: var(--font-heading);
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--text-charcoal);
    position: relative;
    padding: 6px 0;
}

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

.nav-link:hover, .nav-link.active {
    color: var(--text-espresso);
}

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

.btn-nav-cta {
    padding: 8px 18px;
    font-size: 0.85rem;
    background-color: transparent;
    border-color: var(--text-espresso);
    color: var(--text-espresso);
}
.btn-nav-cta:hover {
    background-color: var(--text-espresso);
    color: var(--bg-cream);
}

/* ==========================================================================
   Hero Section
   ========================================================================== */
.hero {
    padding: 160px 24px 100px;
    background: radial-gradient(circle at 80% 20%, #F1F5F9 0%, var(--bg-cream) 60%);
    overflow: hidden;
}

.hero-container {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 80px;
    align-items: center;
}

.hero-badge {
    display: inline-flex;
    padding: 6px 14px;
    border-radius: 20px;
    background-color: rgba(212, 163, 115, 0.12);
    color: #b78351;
    font-family: var(--font-heading);
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 24px;
}

.hero-title {
    font-size: 3.8rem;
    line-height: 1.1;
    color: var(--text-espresso);
    margin-bottom: 24px;
    letter-spacing: -1.5px;
}

.hero-description {
    font-size: 1.15rem;
    color: var(--text-charcoal);
    margin-bottom: 40px;
    max-width: 520px;
}

.hero-buttons {
    display: flex;
    gap: 16px;
}

.hero-visual {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 420px;
}

/* 3D Stacked Book Animation */
.stacked-cards {
    position: relative;
    width: 280px;
    height: 380px;
}

.stacked-card {
    position: absolute;
    width: 100%;
    height: 100%;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow-large);
    transition: var(--transition-smooth);
    cursor: pointer;
    background-color: white;
    border: 3px solid white;
    transform-origin: center bottom;
}

.stacked-card img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* Stack styling based on offset variable i */
.stacked-card.card-vol1 {
    transform: rotate(-10deg) translate(-40px, 0);
    z-index: 10;
}
.stacked-card.card-vol2 {
    transform: rotate(0deg) translate(0, -10px);
    z-index: 9;
}
.stacked-card.card-vol3 {
    transform: rotate(10deg) translate(40px, 0);
    z-index: 8;
}

/* Lift cards nicely on container hover */
.hero-visual:hover .card-vol1 {
    transform: rotate(-18deg) translate(-80px, -20px) scale(1.05);
    box-shadow: 0 40px 80px rgba(43, 37, 33, 0.15);
}
.hero-visual:hover .card-vol2 {
    transform: rotate(0deg) translate(0, -40px) scale(1.05);
    box-shadow: 0 40px 80px rgba(43, 37, 33, 0.15);
}
.hero-visual:hover .card-vol3 {
    transform: rotate(18deg) translate(80px, -20px) scale(1.05);
    box-shadow: 0 40px 80px rgba(43, 37, 33, 0.15);
}

/* ==========================================================================
   Section Headers
   ========================================================================== */
.section-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.section-tag {
    font-family: var(--font-heading);
    font-size: 0.85rem;
    font-weight: 600;
    letter-spacing: 2px;
    color: var(--accent-terracotta);
    text-transform: uppercase;
    margin-bottom: 12px;
    display: inline-block;
}

.section-title {
    font-size: 2.5rem;
    color: var(--text-espresso);
    letter-spacing: -0.5px;
    margin-bottom: 16px;
}

.section-subtitle {
    font-size: 1.05rem;
    color: var(--text-light);
}

/* ==========================================================================
   Philosophy Standards Section
   ========================================================================== */
.philosophy {
    padding: 100px 0;
    border-top: 1px solid var(--card-border);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
    margin-top: 20px;
}

.feature-card {
    background-color: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 20px;
    padding: 40px 32px;
    transition: var(--transition-smooth);
    box-shadow: var(--shadow-soft);
}

.feature-card:hover {
    transform: translateY(-6px);
    background-color: white;
    border-color: var(--accent-gold);
    box-shadow: var(--shadow-medium);
}

.feature-icon {
    width: 60px;
    height: 60px;
    border-radius: 16px;
    background-color: rgba(27, 54, 93, 0.08);
    color: var(--accent-navy);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    margin-bottom: 28px;
    transition: var(--transition-smooth);
}

.feature-card:hover .feature-icon {
    background-color: var(--accent-terracotta);
    color: white;
}

.feature-title {
    font-size: 1.35rem;
    margin-bottom: 14px;
    color: var(--text-espresso);
}

.feature-description {
    font-size: 0.95rem;
    color: var(--text-light);
}

/* Merged Style & Scale Section Divider */
.style-scale-divider {
    height: 1px;
    background-color: var(--card-border);
    margin: 80px 0 60px;
    width: 100%;
}

.style-scale-header {
    text-align: center;
    margin-bottom: 48px;
}

.scale-section-title {
    font-family: var(--font-serif);
    font-size: 2.2rem;
    font-weight: 700;
    color: var(--text-espresso);
    margin-bottom: 12px;
}

.scale-section-subtitle {
    font-size: 1.05rem;
    color: var(--text-light);
    max-width: 750px;
    margin: 0 auto;
    line-height: 1.6;
}

/* ==========================================================================
   Collections & Book Showcase Grid
   ========================================================================== */
.collections {
    padding: 100px 0;
    border-top: 1px solid var(--card-border);
    background-color: var(--bg-soft);
}

/* Filter tabs styling */
.filter-container {
    display: flex;
    justify-content: center;
    gap: 16px;
    margin-bottom: 50px;
}

.filter-tab {
    font-family: var(--font-heading);
    font-size: 0.95rem;
    font-weight: 500;
    padding: 10px 24px;
    border-radius: 30px;
    border: 1px solid var(--card-border);
    background-color: var(--card-bg);
    color: var(--text-charcoal);
    cursor: pointer;
    transition: var(--transition-smooth);
}

.filter-tab:hover {
    border-color: var(--text-espresso);
    color: var(--text-espresso);
}

.filter-tab.active {
    background-color: var(--text-espresso);
    color: var(--bg-cream);
    border-color: var(--text-espresso);
    box-shadow: var(--shadow-soft);
}

/* Books Grid */
.books-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
    gap: 40px;
}

.book-card {
    background-color: white;
    border-radius: 24px;
    overflow: hidden;
    border: 1px solid var(--card-border);
    box-shadow: var(--shadow-soft);
    display: flex;
    flex-direction: column;
    transition: var(--transition-smooth);
    position: relative;
}

.book-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-large);
}

.book-badge {
    position: absolute;
    top: 18px;
    left: 18px;
    background-color: var(--text-espresso);
    color: var(--bg-cream);
    padding: 6px 14px;
    border-radius: 20px;
    font-family: var(--font-heading);
    font-size: 0.75rem;
    font-weight: 600;
    z-index: 10;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
}

.book-badge.upcoming {
    background-color: var(--accent-terracotta);
}

.book-image {
    position: relative;
    padding-top: 100%; /* 1:1 Aspect Ratio Cover */
    overflow: hidden;
    background-color: var(--bg-cream);
    border-bottom: 1px solid var(--card-border);
}

.book-image img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition-smooth);
}

.book-card:hover .book-image img {
    transform: scale(1.04);
}

/* Hover overlay look inside */
.book-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(43, 37, 33, 0.35);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    backdrop-filter: blur(4px);
    transition: var(--transition-smooth);
    z-index: 5;
}

.book-image:hover .book-overlay {
    opacity: 1;
}

.book-info {
    padding: 32px;
    display: flex;
    flex-direction: column;
    flex-grow: 1;
}

.book-difficulty {
    font-family: var(--font-heading);
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 1.5px;
    color: var(--text-light);
    text-transform: uppercase;
    display: flex;
    align-items: center;
    gap: 6px;
    margin-bottom: 12px;
}

.circle-indicator {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    border: 1.5px solid var(--text-light);
    display: inline-block;
}

.circle-indicator.filled {
    background-color: var(--accent-terracotta);
    border-color: var(--accent-terracotta);
}

.book-title {
    font-size: 1.4rem;
    color: var(--text-espresso);
    margin-bottom: 14px;
    line-height: 1.3;
}

.book-description {
    font-size: 0.95rem;
    color: var(--text-light);
    margin-bottom: 24px;
    line-height: 1.5;
    flex-grow: 1;
}

.book-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-top: 1px solid var(--card-border);
    padding-top: 20px;
    margin-bottom: 24px;
}

.meta-item {
    font-family: var(--font-heading);
    font-size: 0.85rem;
    color: var(--text-light);
    display: flex;
    align-items: center;
    gap: 6px;
}

.meta-item.price {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-espresso);
}

.upcoming-tag {
    background-color: rgba(143, 168, 155, 0.15);
    color: #557262;
    padding: 3px 10px;
    border-radius: 12px;
    font-size: 0.75rem;
    font-weight: 600;
}

/* ==========================================================================
   Look Inside Modal Style
   ========================================================================== */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 2000;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    pointer-events: none;
    transition: all 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}

.modal.active {
    opacity: 1;
    pointer-events: auto;
}

.modal-backdrop {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(43, 37, 33, 0.8);
    backdrop-filter: blur(8px);
}

.modal-content {
    position: relative;
    background-color: var(--bg-cream);
    border-radius: 28px;
    width: 90%;
    max-width: 720px;
    box-shadow: var(--shadow-large);
    border: 1px solid var(--card-border);
    z-index: 10;
    transform: scale(0.9) translateY(20px);
    transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.modal.active .modal-content {
    transform: scale(1) translateY(0);
}

.modal-close {
    position: absolute;
    top: 24px;
    right: 24px;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: rgba(43, 37, 33, 0.05);
    border: none;
    font-size: 1.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    color: var(--text-espresso);
    transition: var(--transition-fast);
}

.modal-close:hover {
    background-color: var(--text-espresso);
    color: var(--bg-cream);
}

.modal-header {
    padding: 36px 36px 20px;
}

.modal-badge {
    font-family: var(--font-heading);
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--accent-terracotta);
    text-transform: uppercase;
    letter-spacing: 1px;
    display: inline-block;
    margin-bottom: 6px;
}

.modal-title {
    font-size: 1.65rem;
    color: var(--text-espresso);
    margin-bottom: 6px;
}

.modal-subtitle {
    font-size: 0.9rem;
    color: var(--text-light);
}

.modal-body {
    padding: 0 36px 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
}

.btn-flip {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    border: 1px solid var(--card-border);
    background-color: white;
    color: var(--text-espresso);
    font-size: 1.1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    box-shadow: var(--shadow-soft);
    transition: var(--transition-fast);
    flex-shrink: 0;
}

.btn-flip:hover {
    background-color: var(--text-espresso);
    color: var(--bg-cream);
}

.preview-page-container {
    flex-grow: 1;
    aspect-ratio: 1;
    background-color: white;
    border-radius: 16px;
    border: 1px solid var(--card-border);
    box-shadow: var(--shadow-medium);
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 16px;
}

.preview-page-container img {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
    border-radius: 8px;
}

.modal-footer {
    padding: 20px 36px 36px;
    border-top: 1px solid var(--card-border);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.preview-dots {
    display: flex;
    gap: 8px;
}

.dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background-color: #E8DFD3;
    cursor: pointer;
    transition: var(--transition-fast);
}

.dot.active {
    background-color: var(--accent-terracotta);
    transform: scale(1.3);
}

.preview-page-num {
    font-family: var(--font-heading);
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-light);
}

/* ==========================================================================
   Newsletter Printable Sample Section
   ========================================================================== */
.newsletter {
    padding: 100px 24px;
    background-color: var(--bg-cream);
}

.newsletter-container {
    max-width: 960px;
    margin: 0 auto;
}

.newsletter-card {
    background: radial-gradient(circle at 10% 10%, #F1F5F9 0%, white 100%);
    border-radius: 36px;
    border: 1px solid var(--card-border);
    box-shadow: var(--shadow-large);
    padding: 60px 80px;
    position: relative;
    overflow: hidden;
}

.newsletter-content, .newsletter-success {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    transition: var(--transition-smooth);
}

.card-tag {
    font-family: var(--font-heading);
    font-size: 0.85rem;
    font-weight: 600;
    letter-spacing: 1.5px;
    color: var(--accent-terracotta);
    text-transform: uppercase;
    margin-bottom: 16px;
}

.card-title {
    font-size: 2.2rem;
    color: var(--text-espresso);
    margin-bottom: 16px;
    letter-spacing: -0.5px;
}

.card-text {
    font-size: 1.05rem;
    color: var(--text-charcoal);
    margin-bottom: 40px;
    max-width: 580px;
    line-height: 1.6;
}

.newsletter-form {
    display: flex;
    gap: 16px;
    width: 100%;
    max-width: 680px;
    align-items: center;
}

.form-group {
    position: relative;
    flex-grow: 1;
}

.input-icon {
    position: absolute;
    top: 50%;
    left: 20px;
    transform: translateY(-50%);
    color: var(--text-light);
    font-size: 1.05rem;
}

.form-input {
    width: 100%;
    padding: 16px 20px 16px 52px;
    border-radius: 30px;
    border: 1px solid var(--card-border);
    background-color: var(--bg-cream);
    color: var(--text-espresso);
    font-family: var(--font-body);
    font-size: 0.95rem;
    outline: none;
    transition: var(--transition-smooth);
}

.form-input:focus {
    border-color: var(--accent-terracotta);
    background-color: white;
    box-shadow: 0 0 0 4px rgba(212, 122, 96, 0.08);
}

.btn-submit {
    flex-shrink: 0;
    padding: 16px 36px;
}

/* Success State Styles */
.success-icon {
    font-size: 4rem;
    color: #6C8E7E;
    margin-bottom: 24px;
    animation: scaleIn 0.5s cubic-bezier(0.175, 0.885, 0.32, 1.275) forwards;
}

.btn-success-download {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 16px 40px;
    background-color: #6C8E7E;
    color: white;
    border-radius: 35px;
    font-family: var(--font-heading);
    font-size: 1.1rem;
    font-weight: 600;
    box-shadow: var(--shadow-medium);
    transition: var(--transition-smooth);
    margin-bottom: 24px;
}

.btn-success-download:hover {
    background-color: var(--text-espresso);
    transform: translateY(-3px);
    box-shadow: var(--shadow-large);
}

.btn-reset-form {
    background: none;
    border: none;
    font-family: var(--font-heading);
    font-size: 0.85rem;
    color: var(--text-light);
    cursor: pointer;
    text-decoration: underline;
    transition: var(--transition-fast);
}

.btn-reset-form:hover {
    color: var(--text-espresso);
}

/* ==========================================================================
   Toast Notification Styling
   ========================================================================== */
.toast {
    position: fixed;
    bottom: -100px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 3000;
    background-color: var(--text-espresso);
    color: var(--bg-cream);
    border-radius: 20px;
    padding: 16px 28px;
    box-shadow: var(--shadow-large);
    transition: all 0.5s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    max-width: 90%;
    width: 400px;
}

.toast.active {
    bottom: 40px;
}

.toast-content {
    display: flex;
    align-items: center;
    gap: 16px;
}

.toast-icon {
    font-size: 1.6rem;
    color: var(--accent-gold);
}

.toast-message strong {
    font-family: var(--font-heading);
    font-size: 0.95rem;
    display: block;
    margin-bottom: 2px;
}

.toast-message p {
    color: #B4A9A2;
    font-size: 0.85rem;
}

/* ==========================================================================
   Footer Section
   ========================================================================== */
.footer {
    background-color: var(--text-espresso);
    color: var(--bg-cream);
    padding: 80px 24px 40px;
    margin-top: auto;
}

.footer-container {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1.5fr repeat(2, 0.75fr);
    gap: 60px;
    padding-bottom: 60px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-brand .logo-serif {
    color: white;
}
.footer-brand .logo-sans {
    color: var(--accent-gold);
}

.footer-about {
    color: #B4A9A2;
    font-size: 0.9rem;
    margin-top: 20px;
    max-width: 360px;
    line-height: 1.6;
}

.footer-title {
    font-size: 1.1rem;
    font-weight: 600;
    color: white;
    margin-bottom: 24px;
    letter-spacing: 0.5px;
}

.footer-links {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-link {
    color: #B4A9A2;
    font-size: 0.95rem;
    width: fit-content;
}

.footer-link:hover {
    color: var(--accent-gold);
    transform: translateX(4px);
}

.social-icons {
    display: flex;
    gap: 16px;
    margin-bottom: 20px;
}

.social-icon {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: rgba(255, 255, 255, 0.05);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    color: #B4A9A2;
    transition: var(--transition-fast);
}

.social-icon:hover {
    background-color: var(--accent-gold);
    color: var(--text-espresso);
    transform: translateY(-2px);
}

.footer-contact {
    color: #B4A9A2;
    font-size: 0.9rem;
    display: flex;
    align-items: center;
    gap: 8px;
}

.footer-bottom {
    max-width: 1200px;
    margin: 0 auto;
    padding-top: 30px;
    text-align: center;
    color: #8C7F76;
    font-size: 0.8rem;
}

/* ==========================================================================
   Animations
   ========================================================================== */
@keyframes scaleIn {
    0% { transform: scale(0.5); opacity: 0; }
    100% { transform: scale(1); opacity: 1; }
}

/* ==========================================================================
   Responsive Media Queries
   ========================================================================== */
@media (max-width: 992px) {
    .hero-container {
        grid-template-columns: 1fr;
        gap: 60px;
        text-align: center;
    }
    
    .hero-title {
        font-size: 3.2rem;
    }
    
    .hero-description {
        margin-left: auto;
        margin-right: auto;
    }
    
    .hero-buttons {
        justify-content: center;
    }
    
    .hero-visual {
        min-height: 380px;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
        gap: 24px;
    }
    
    .newsletter-card {
        padding: 50px 40px;
    }
    
    .newsletter-form {
        flex-direction: column;
        gap: 16px;
    }
    
    .btn-submit {
        width: 100%;
    }
    
    .footer-container {
        grid-template-columns: 1fr;
        gap: 40px;
    }
}

@media (max-width: 576px) {
    .header-container {
        padding: 16px;
    }
    
    .nav-menu {
        display: none; /* Can be expanded for collapsible burger menu if needed */
    }
    
    .hero {
        padding-top: 120px;
    }
    
    .hero-title {
        font-size: 2.4rem;
    }
    
    .hero-buttons {
        flex-direction: column;
        width: 100%;
    }
    
    .hero-buttons .btn {
        width: 100%;
    }
    
    .stacked-cards {
        width: 200px;
        height: 270px;
    }
    
    .stacked-card.card-vol1 {
        transform: rotate(-10deg) translate(-25px, 0);
    }
    
    .stacked-card.card-vol3 {
        transform: rotate(10deg) translate(25px, 0);
    }
    
    .hero-visual:hover .card-vol1 {
        transform: rotate(-15deg) translate(-40px, -10px) scale(1.02);
    }
    .hero-visual:hover .card-vol2 {
        transform: rotate(0deg) translate(0, -20px) scale(1.02);
    }
    .hero-visual:hover .card-vol3 {
        transform: rotate(15deg) translate(40px, -10px) scale(1.02);
    }
    
    .filter-container {
        flex-wrap: wrap;
    }
    
    .filter-tab {
        flex-grow: 1;
        text-align: center;
        padding: 8px 16px;
        font-size: 0.85rem;
    }
    
    .modal-content {
        width: 95%;
    }
    
    .modal-body {
        padding: 0 16px 16px;
    }
    
    .btn-flip {
        width: 36px;
        height: 36px;
        font-size: 0.9rem;
    }
}

/* ==========================================================================
   Cozy Level Visualizer Section (Horizontal Publisher Layout)
   ========================================================================== */
.levels-section {
    padding: 100px 0;
    border-top: 1px solid var(--card-border);
    background-color: var(--bg-soft); /* Slate-50 off-white background */
}

.levels-horizontal-container {
    display: flex;
    flex-direction: column;
    gap: 48px;
    margin-top: 40px;
}

/* Stepper Scale Track */
.levels-horizontal-scale {
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: relative;
    max-width: 900px;
    margin: 0 auto;
    width: 100%;
    padding: 0 40px;
}

/* Horizontal connectors line behind */
.levels-horizontal-scale::before {
    content: '';
    position: absolute;
    top: 25px; /* Centers with the 50px dot */
    left: 80px;
    right: 80px;
    height: 3px;
    background-color: #E2E8F0;
    z-index: 1;
}

.scale-step {
    display: flex;
    flex-direction: column;
    align-items: center;
    cursor: pointer;
    z-index: 2;
    position: relative;
    transition: var(--transition-smooth);
    width: 150px;
}

.scale-dot {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background-color: #FFFFFF;
    border: 3px solid #E2E8F0;
    color: var(--text-light);
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 1.1rem;
    transition: var(--transition-smooth);
    box-shadow: var(--shadow-soft);
}

.scale-info {
    margin-top: 12px;
    text-align: center;
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.scale-num {
    font-family: var(--font-heading);
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    color: var(--text-light);
    letter-spacing: 0.5px;
}

.scale-name {
    font-family: var(--font-heading);
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-charcoal);
    transition: var(--transition-fast);
}

/* Hover States */
.scale-step:hover .scale-dot {
    border-color: var(--accent-gold);
    color: var(--text-espresso);
    transform: translateY(-3px);
}

/* Active State */
.scale-step.active .scale-dot {
    background-color: var(--text-espresso);
    border-color: var(--text-espresso);
    color: #FFFFFF;
    box-shadow: 0 0 0 6px rgba(15, 23, 42, 0.1);
}

.scale-step.active .scale-name {
    color: var(--text-espresso);
    font-weight: 700;
}

/* Split Showcase Panel Layout */
.level-showcase-panel {
    background-color: #FFFFFF;
    border-radius: 28px;
    border: 1px solid var(--card-border);
    box-shadow: var(--shadow-medium);
    display: grid;
    grid-template-columns: 1fr 1.1fr;
    gap: 40px;
    padding: 48px;
    max-width: 1000px;
    margin: 0 auto;
    width: 100%;
    align-items: center;
}

/* Left Details panel styling */
.level-details-panel {
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.active-level-header {
    margin-bottom: 20px;
}

.active-level-number {
    font-family: var(--font-heading);
    font-size: 0.8rem;
    font-weight: 800;
    text-transform: uppercase;
    color: var(--accent-gold);
    letter-spacing: 1px;
    display: block;
    margin-bottom: 6px;
}

.active-level-title {
    font-size: 2.2rem;
    font-weight: 700;
    color: var(--text-espresso);
    line-height: 1.15;
}

.active-level-description {
    font-size: 1.05rem;
    color: var(--text-charcoal);
    line-height: 1.7;
    margin-bottom: 28px;
    transition: opacity 0.25s ease-in-out;
}

.active-level-badges {
    display: flex;
    gap: 12px;
}

.spec-badge {
    font-family: var(--font-heading);
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text-espresso);
    background-color: var(--bg-soft);
    padding: 6px 16px;
    border-radius: 10px;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    border: 1px solid rgba(15, 23, 42, 0.05);
    transition: var(--transition-fast);
}

/* Right preview panel styling */
.level-preview-panel {
    display: flex;
    justify-content: center;
    align-items: center;
}

.paper-frame {
    background-color: white;
    border-radius: 20px;
    border: 1px solid var(--card-border);
    box-shadow: var(--shadow-large);
    padding: 20px;
    width: 100%;
    max-width: 440px;
    aspect-ratio: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.levels-preview-image {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
    border-radius: 12px;
    transition: opacity 0.25s ease-in-out;
}

.levels-preview-image.fade-out {
    opacity: 0;
}

.level-canvas-overlay {
    position: absolute;
    bottom: 20px;
    right: 20px;
    z-index: 10;
}

.active-level-badge {
    font-family: var(--font-heading);
    font-size: 0.75rem;
    font-weight: 700;
    background-color: var(--text-espresso);
    color: #FFFFFF;
    padding: 6px 14px;
    border-radius: 12px;
    letter-spacing: 0.5px;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.15);
}

/* Stepper Responsiveness */
@media (max-width: 992px) {
    .levels-horizontal-scale::before {
        display: none;
    }
    
    .levels-horizontal-scale {
        flex-direction: row;
        flex-wrap: wrap;
        justify-content: center;
        gap: 16px;
        padding: 0;
    }
    
    .scale-step {
        width: 45%;
        flex-direction: row;
        gap: 12px;
        background-color: #FFFFFF;
        padding: 12px 16px;
        border-radius: 12px;
        border: 1px solid var(--card-border);
        box-shadow: var(--shadow-soft);
    }
    
    .scale-step.active {
        border-color: var(--text-espresso);
        background-color: var(--bg-soft);
    }
    
    .scale-info {
        margin-top: 0;
        text-align: left;
    }
    
    .scale-dot {
        width: 32px;
        height: 32px;
        font-size: 0.85rem;
        border-width: 2px;
    }

    .level-showcase-panel {
        grid-template-columns: 1fr;
        padding: 24px;
        gap: 30px;
    }
    
    .active-level-title {
        font-size: 1.8rem;
    }
}

/* --- 6. PREMIUM MODAL STYLING --- */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2000;
    opacity: 0;
    pointer-events: none;
    transition: var(--transition-smooth);
}

.modal.active {
    opacity: 1;
    pointer-events: all;
}

.modal-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(27, 54, 93, 0.4);
    backdrop-filter: blur(8px);
}

.modal-card {
    position: relative;
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 24px;
    padding: 40px;
    width: 90%;
    max-width: 480px;
    box-shadow: var(--shadow-large);
    z-index: 2001;
    transform: translateY(20px) scale(0.95);
    transition: var(--transition-smooth);
}

.modal.active .modal-card {
    transform: translateY(0) scale(1);
}

.modal-close-btn {
    position: absolute;
    top: 20px;
    right: 20px;
    background: none;
    border: none;
    font-size: 1.25rem;
    color: var(--text-light);
    cursor: pointer;
    transition: var(--transition-fast);
}

.modal-close-btn:hover {
    color: var(--accent-navy);
    transform: rotate(90deg);
}

.modal-title {
    font-family: var(--font-heading);
    font-size: 1.75rem;
    color: var(--text-espresso);
    margin: 12px 0 8px;
    font-weight: 700;
}

.modal-description {
    font-size: 0.95rem;
    color: var(--text-charcoal);
    line-height: 1.6;
    margin-bottom: 24px;
}

#notify-form {
    display: flex;
    flex-direction: column;
    gap: 16px;
    width: 100%;
}

.w-100 {
    width: 100%;
}