/* ==========================================================================
   PUBLIC.CSS
   Shared styles for landing page (index.php), login & signup pages.
   Dark theme: neutral gray with a subtle blue undertone.
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@400;500;600;700&family=DM+Sans:wght@400;500;600;700&display=swap');

/* --------------------------------------------------------------------------
   CSS Variables
   -------------------------------------------------------------------------- */
:root {
    --bg-deep: #242628;
    --bg-card: #2d2e31;
    --bg-card-hover: #383939;
    --bg-surface: #1e2022;
    --border: #454648;
    --border-glow: #2dd4bf33;
    --teal: #2dd4bf;
    --teal-dark: #14b8a6;
    --amber: #fbbf24;
    --amber-dark: #f59e0b;
    --rose: #fb7185;
    --violet: #a78bfa;
    --sky: #38bdf8;
    --text-primary: #ecf0f1;
    --text-secondary: #bdc3c7;
    --text-muted: #95a5a6;
}

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

html { scroll-behavior: smooth; }

/* ==========================================================================
   LANDING PAGE STYLES (index.php)
   ========================================================================== */

body.page-landing {
    font-family: 'DM Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--bg-deep);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

body.page-landing h1,
body.page-landing h2,
body.page-landing h3,
body.page-landing h4 {
    font-family: 'Space Grotesk', sans-serif;
}

/* Navbar */
.nav-dark {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 50;
    background: rgba(36, 38, 40, 0.8);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
    transition: all 0.3s ease;
}
.nav-dark.scrolled {
    background: rgba(36, 38, 40, 0.95);
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.4);
}
.nav-inner {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 1.5rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 4rem;
}
.nav-brand {
    display: flex;
    align-items: center;
    gap: 0.625rem;
    text-decoration: none;
    color: var(--text-primary);
}
.nav-brand-text {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 1.35rem;
    font-weight: 700;
    letter-spacing: -0.02em;
}
.nav-brand-text .mania {
    color: var(--teal);
}
.nav-links {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}
.nav-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 500;
    padding: 0.5rem 1rem;
    border-radius: 0.5rem;
    transition: all 0.2s ease;
}
.nav-links a:not(.btn-teal):hover {
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.05);
}
.btn-teal {
    background: linear-gradient(135deg, var(--teal), var(--teal-dark));
    color: #1a1c1e !important;
    padding: 0.5rem 1.25rem !important;
    border-radius: 0.5rem;
    font-weight: 700 !important;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 0.375rem;
    transition: all 0.2s ease;
    box-shadow: 0 4px 16px rgba(45, 212, 191, 0.25);
}
.btn-teal:hover {
    transform: translateY(-1px);
    box-shadow: 0 6px 24px rgba(45, 212, 191, 0.35);
}

/* Mobile nav */
.nav-mobile-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    padding: 0.5rem;
}
.mobile-menu-dark {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: rgba(36, 38, 40, 0.98);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
    padding: 1rem 1.5rem;
}
.mobile-menu-dark.open { display: block; }
.mobile-menu-dark a {
    display: block;
    padding: 0.75rem 0;
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    border-bottom: 1px solid var(--border);
}
.mobile-menu-dark a:last-child { border-bottom: none; }
.mobile-menu-dark a:hover { color: var(--teal); }

@media (max-width: 768px) {
    .nav-links { display: none; }
    .nav-mobile-toggle { display: block; }
}

/* Hero */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}
.hero-bg {
    position: absolute;
    inset: 0;
    z-index: 0;
}
.hero-bg-image {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0;
    transition: opacity 2s ease-in-out;
}
.hero-bg-image.active {
    opacity: 1;
}
.hero-overlay {
    position: absolute;
    inset: 0;
    background:
        linear-gradient(180deg, rgba(36, 38, 40, 0.5) 0%, rgba(36, 38, 40, 0.3) 30%, rgba(36, 38, 40, 0.6) 70%, rgba(36, 38, 40, 1) 100%),
        linear-gradient(135deg, rgba(36, 38, 40, 0.7) 0%, transparent 50%);
    z-index: 1;
}
.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    max-width: 900px;
    padding: 0 1.5rem;
}
.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: rgba(45, 212, 191, 0.1);
    border: 1px solid rgba(45, 212, 191, 0.25);
    border-radius: 100px;
    padding: 0.5rem 1.25rem;
    margin-bottom: 2rem;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--teal);
    letter-spacing: 0.05em;
    text-transform: uppercase;
}
.hero-badge svg {
    animation: spin-slow 8s linear infinite;
}
@keyframes spin-slow {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}
.hero h1 {
    font-size: clamp(2.75rem, 8vw, 6rem);
    font-weight: 700;
    line-height: 1.05;
    margin-bottom: 1.5rem;
    letter-spacing: -0.03em;
}
.hero h1 .teal-glow {
    color: var(--teal);
    text-shadow: 0 0 40px rgba(45, 212, 191, 0.4), 0 0 80px rgba(45, 212, 191, 0.15);
}
.hero-sub {
    font-size: 1.25rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto 2.5rem;
    line-height: 1.7;
}
.hero-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    justify-content: center;
}
.btn-hero-primary {
    background: linear-gradient(135deg, var(--teal), var(--teal-dark));
    color: #1a1c1e;
    padding: 0.875rem 2rem;
    border-radius: 0.625rem;
    font-weight: 700;
    font-size: 1rem;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    transition: all 0.25s ease;
    box-shadow: 0 6px 24px rgba(45, 212, 191, 0.3);
    font-family: 'Space Grotesk', sans-serif;
}
.btn-hero-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 32px rgba(45, 212, 191, 0.45);
}
.btn-hero-outline {
    border: 1.5px solid var(--text-muted);
    color: var(--text-primary);
    padding: 0.875rem 2rem;
    border-radius: 0.625rem;
    font-weight: 600;
    font-size: 1rem;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    transition: all 0.2s ease;
    background: rgba(255, 255, 255, 0.03);
    font-family: 'Space Grotesk', sans-serif;
}
.btn-hero-outline:hover {
    border-color: var(--teal);
    color: var(--teal);
    background: rgba(45, 212, 191, 0.05);
}

/* Scroll indicator */
.scroll-indicator {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    z-index: 2;
    animation: bounce-subtle 2s ease-in-out infinite;
}
@keyframes bounce-subtle {
    0%, 100% { transform: translateX(-50%) translateY(0); }
    50% { transform: translateX(-50%) translateY(8px); }
}

/* Section styling */
.section-dark {
    padding: 6rem 0;
    position: relative;
}
.section-darker {
    padding: 6rem 0;
    background: var(--bg-surface);
    position: relative;
}
.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 1.5rem;
}
.section-header {
    text-align: center;
    margin-bottom: 4rem;
}
.section-header h2 {
    font-size: 2.25rem;
    font-weight: 700;
    margin-bottom: 1rem;
    letter-spacing: -0.02em;
}
.section-header p {
    color: var(--text-secondary);
    font-size: 1.125rem;
    max-width: 600px;
    margin: 0 auto;
}
.text-teal { color: var(--teal); }
.text-amber { color: var(--amber); }

/* Tasmanian Gallery Strip */
.gallery-strip {
    display: flex;
    gap: 1rem;
    overflow: hidden;
    padding: 3rem 0;
    position: relative;
}
.gallery-strip::before,
.gallery-strip::after {
    content: '';
    position: absolute;
    top: 0;
    bottom: 0;
    width: 120px;
    z-index: 2;
    pointer-events: none;
}
.gallery-strip::before {
    left: 0;
    background: linear-gradient(90deg, var(--bg-deep), transparent);
}
.gallery-strip::after {
    right: 0;
    background: linear-gradient(270deg, var(--bg-deep), transparent);
}
.gallery-track {
    display: flex;
    gap: 1rem;
    animation: scroll-gallery 45s linear infinite;
}
.gallery-track img {
    width: 400px;
    height: 133px;
    object-fit: cover;
    border-radius: 0.75rem;
    flex-shrink: 0;
    border: 1px solid var(--border);
    transition: all 0.3s ease;
}
.gallery-track img:hover {
    border-color: var(--teal);
    transform: scale(1.02);
    box-shadow: 0 8px 32px rgba(45, 212, 191, 0.15);
}
@keyframes scroll-gallery {
    0% { transform: translateX(0); }
    100% { transform: translateX(-50%); }
}

/* Feature Cards */
.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
}
@media (max-width: 1024px) {
    .features-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 640px) {
    .features-grid { grid-template-columns: 1fr; }
}
.feature-card-dark {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 1rem;
    padding: 2rem;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}
.feature-card-dark::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, transparent, var(--teal), transparent);
    opacity: 0;
    transition: opacity 0.3s ease;
}
.feature-card-dark:hover {
    border-color: rgba(45, 212, 191, 0.3);
    background: var(--bg-card-hover);
    transform: translateY(-4px);
    box-shadow: 0 16px 40px rgba(0, 0, 0, 0.3);
}
.feature-card-dark:hover::before {
    opacity: 1;
}
.feature-icon-dark {
    width: 3rem;
    height: 3rem;
    border-radius: 0.75rem;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.25rem;
}
.feature-card-dark h3 {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}
.feature-card-dark p {
    color: var(--text-secondary);
    font-size: 0.9375rem;
    line-height: 1.6;
}

/* Big Image Showcase */
.showcase-hero {
    position: relative;
    border-radius: 1.25rem;
    overflow: hidden;
    aspect-ratio: 3 / 1;
    max-width: 1000px;
    margin: 0 auto;
    border: 1px solid var(--border);
    box-shadow: 0 24px 64px rgba(0, 0, 0, 0.4);
}
.showcase-hero img {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0;
    transition: opacity 1.5s ease-in-out;
}
.showcase-hero img.active {
    opacity: 1;
}
.showcase-hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(36, 38, 40, 0.4), transparent, rgba(36, 38, 40, 0.3));
    z-index: 1;
}
.showcase-hero-text {
    position: absolute;
    bottom: 1.5rem;
    left: 1.5rem;
    z-index: 2;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    background: rgba(36, 38, 40, 0.7);
    backdrop-filter: blur(12px);
    padding: 0.5rem 1rem;
    border-radius: 0.5rem;
    font-size: 0.8125rem;
    color: var(--text-secondary);
    border: 1px solid var(--border);
}
.showcase-dots-dark {
    display: flex;
    gap: 0.5rem;
    justify-content: center;
    margin-top: 1.5rem;
}
.showcase-dot-dark {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--text-muted);
    border: none;
    padding: 0;
    cursor: pointer;
    transition: all 0.3s ease;
}
.showcase-dot-dark.active {
    background: var(--teal);
    transform: scale(1.3);
    box-shadow: 0 0 8px rgba(45, 212, 191, 0.5);
}

/* Quirky facts banner */
.facts-strip {
    display: flex;
    gap: 2rem;
    justify-content: center;
    flex-wrap: wrap;
    padding: 2rem 0;
}
.fact-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1.25rem;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 100px;
    transition: all 0.2s ease;
}
.fact-item:hover {
    border-color: rgba(45, 212, 191, 0.3);
    background: var(--bg-card-hover);
}
.fact-emoji {
    font-size: 1.375rem;
}
.fact-text {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-secondary);
}

/* Steps */
.steps-row {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
    position: relative;
}
@media (max-width: 768px) {
    .steps-row { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 480px) {
    .steps-row { grid-template-columns: 1fr; }
}
.step-dark {
    text-align: center;
}
.step-num {
    width: 4rem;
    height: 4rem;
    border-radius: 50%;
    border: 2px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.25rem;
    font-family: 'Space Grotesk', sans-serif;
    font-size: 1.375rem;
    font-weight: 700;
    color: var(--text-muted);
    background: var(--bg-card);
    transition: all 0.3s ease;
}
.step-dark:hover .step-num {
    border-color: var(--teal);
    color: var(--teal);
    box-shadow: 0 0 0 4px rgba(45, 212, 191, 0.1), 0 0 20px rgba(45, 212, 191, 0.15);
}
.step-dark h3 {
    font-size: 1.0625rem;
    font-weight: 600;
    margin-bottom: 0.375rem;
}
.step-dark p {
    color: var(--text-muted);
    font-size: 0.875rem;
}

/* CTA */
.cta-dark {
    position: relative;
    padding: 6rem 0;
    text-align: center;
    overflow: hidden;
}
.cta-dark::before {
    content: '';
    position: absolute;
    inset: 0;
    background:
        radial-gradient(ellipse 60% 50% at 50% 50%, rgba(45, 212, 191, 0.06), transparent),
        radial-gradient(circle at 30% 70%, rgba(45, 212, 191, 0.03), transparent);
    pointer-events: none;
}
.cta-glow-box {
    position: relative;
    max-width: 700px;
    margin: 0 auto;
    padding: 3.5rem 2.5rem;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 1.5rem;
    box-shadow: 0 24px 64px rgba(0, 0, 0, 0.3);
}
.cta-glow-box::before {
    content: '';
    position: absolute;
    inset: -1px;
    border-radius: 1.5rem;
    background: linear-gradient(135deg, rgba(45, 212, 191, 0.2), transparent, rgba(45, 212, 191, 0.1));
    z-index: -1;
}
.cta-dark h2 {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 1rem;
    letter-spacing: -0.02em;
}
.cta-dark p {
    color: var(--text-secondary);
    font-size: 1.0625rem;
    margin-bottom: 2rem;
}

/* Footer */
.footer-dark {
    background: var(--bg-surface);
    border-top: 1px solid var(--border);
    padding: 2rem 0;
}
.footer-inner {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 1.5rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 1rem;
}
.footer-left {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-muted);
    font-size: 0.875rem;
}
.footer-left a {
    color: inherit;
    text-decoration: none;
    transition: color 0.2s;
}
.footer-left a:hover { color: var(--teal); }
.footer-links {
    display: flex;
    gap: 1.5rem;
}
.footer-links a {
    color: var(--text-muted);
    text-decoration: none;
    font-size: 0.875rem;
    transition: color 0.2s;
}
.footer-links a:hover { color: var(--teal); }

/* Fade-up */
.fade-up {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}
.fade-up.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Devil inline SVG animation */
.devil-icon {
    display: inline-block;
    animation: wiggle 3s ease-in-out infinite;
}
@keyframes wiggle {
    0%, 100% { transform: rotate(0deg); }
    25% { transform: rotate(-5deg); }
    75% { transform: rotate(5deg); }
}


/* ==========================================================================
   AUTH PAGE STYLES (login.php & signup.php)
   ========================================================================== */

body.page-auth {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.5;
    color: #334155;
    min-height: 100vh;
}

.auth-container {
    display: flex;
    min-height: 100vh;
}

/* Left Panel */
.auth-left {
    flex: 1;
    background: linear-gradient(135deg, #1e2022 0%, #2a2c2f 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 3rem;
    position: relative;
    overflow: hidden;
}
.auth-left::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(circle, rgba(148, 163, 184, 0.08) 1px, transparent 1px);
    background-size: 24px 24px;
    pointer-events: none;
}
.auth-left::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(100, 116, 139, 0.06), transparent 70%);
    pointer-events: none;
}

.brand-content {
    position: relative;
    z-index: 1;
    max-width: 380px;
}
.brand-logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 1.5rem;
}
.brand-logo span {
    font-size: 1.5rem;
    font-weight: 800;
    color: #f8fafc;
}
.brand-tagline {
    font-size: 1.125rem;
    color: #94a3b8;
    margin-bottom: 2.5rem;
    line-height: 1.6;
}
.brand-features {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.875rem;
}
.brand-features li {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    color: #cbd5e1;
    font-size: 0.9375rem;
}

/* Right Panel */
.auth-right {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 3rem;
    background: #ffffff;
}

.form-wrapper {
    width: 100%;
    max-width: 400px;
}

.form-header {
    margin-bottom: 2rem;
}
.form-header h1 {
    font-size: 1.65rem;
    font-weight: 800;
    color: #0f172a;
    margin-bottom: 0.375rem;
}
.form-header p {
    color: #64748b;
    font-size: 0.9375rem;
}

/* Flash Messages */
.flash-message {
    padding: 0.875rem 1rem;
    border-radius: 0.5rem;
    margin-bottom: 1.5rem;
    font-size: 0.875rem;
    font-weight: 500;
    animation: flash-in 0.3s ease-out;
}
.flash-error {
    background: #fef2f2;
    color: #dc2626;
    border: 1px solid #fecaca;
}
.flash-success {
    background: #f0fdf4;
    color: #16a34a;
    border: 1px solid #bbf7d0;
}
@keyframes flash-in {
    from { opacity: 0; transform: translateY(-8px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Form */
.form-group {
    margin-bottom: 1.25rem;
}
.form-group label {
    display: block;
    margin-bottom: 0.375rem;
    font-size: 0.875rem;
    font-weight: 600;
    color: #334155;
}
.form-group input[type="email"],
.form-group input[type="password"] {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 1.5px solid #e2e8f0;
    border-radius: 0.625rem;
    font-size: 0.9375rem;
    font-family: inherit;
    color: #0f172a;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
    background: #ffffff;
}
.form-group input:focus {
    outline: none;
    border-color: #64748b;
    box-shadow: 0 0 0 3px rgba(100, 116, 139, 0.12);
}
.form-group input::placeholder {
    color: #94a3b8;
}
.form-hint {
    font-size: 0.75rem;
    color: #94a3b8;
    margin-top: 0.25rem;
}

.checkbox-group {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
}
.checkbox-group input[type="checkbox"] {
    width: 1rem;
    height: 1rem;
    accent-color: #475569;
    cursor: pointer;
}
.checkbox-group label {
    font-size: 0.875rem;
    color: #64748b;
    cursor: pointer;
    user-select: none;
}

.btn-submit {
    width: 100%;
    padding: 0.75rem 1.5rem;
    background: linear-gradient(135deg, #475569, #334155);
    color: white;
    border: none;
    border-radius: 0.625rem;
    font-size: 1rem;
    font-weight: 600;
    font-family: inherit;
    cursor: pointer;
    transition: all 0.2s ease;
    box-shadow: 0 2px 8px rgba(71, 85, 105, 0.25);
}
.btn-submit:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 16px rgba(71, 85, 105, 0.35);
}
.btn-submit:active {
    transform: translateY(0);
}

.form-alt {
    text-align: center;
    margin-top: 1.5rem;
    font-size: 0.875rem;
    color: #64748b;
}
.form-alt a {
    color: #475569;
    text-decoration: none;
    font-weight: 600;
}
.form-alt a:hover {
    color: #334155;
    text-decoration: underline;
}

/* Auth Footer */
.auth-footer {
    margin-top: 2.5rem;
    padding-top: 1.5rem;
    border-top: 1px solid #f1f5f9;
    text-align: center;
}
.back-link {
    display: inline-flex;
    align-items: center;
    gap: 0.375rem;
    color: #94a3b8;
    text-decoration: none;
    font-size: 0.8125rem;
    font-weight: 500;
    transition: color 0.2s ease;
    margin-bottom: 0.75rem;
}
.back-link:hover { color: #475569; }
.copyright {
    font-size: 0.75rem;
    color: #94a3b8;
}
.copyright a {
    color: inherit;
    text-decoration: none;
}
.copyright a:hover { color: #64748b; }

/* Auth Responsive */
@media (max-width: 900px) {
    .auth-left { display: none; }
}
@media (max-width: 480px) {
    .auth-right { padding: 2rem 1.5rem; }
}