/* ========================================
   BRANDS BY STARS - PRIVATE THEATRE PORTAL
   Luxury Presentation Portal - Vanilla CSS
   ======================================== */

/* ========================================
   CSS VARIABLES - BRAND GUIDELINES
   ======================================== */

:root {
    /* Primary Brand Colors */
    --midnight-black: #0A0A0A;
    --champagne-gold: #D4AF37;
    --ivory-silk: #F8F6F1;
    --charcoal-smoke: #2C2C2C;
    --pearl-gray: #E8E6E1;

    /* Gold Scale */
    --gold-900: #8B7426;
    --gold-800: #A38930;
    --gold-700: #BA9F39;
    --gold-600: #C7AA3B;
    --gold-500: #D4AF37;
    --gold-400: #DCC15B;
    --gold-300: #E4D37F;
    --gold-200: #ECE5A3;
    --gold-100: #F3F0C7;
    --gold-50: #F9F7E3;

    /* Black Scale */
    --black-950: #0A0A0A;
    --black-900: #1A1A1A;
    --black-800: #2C2C2C;
    --black-700: #3D3D3D;
    --black-600: #4E4E4E;

    /* Functional Colors */
    --error-color: #8B3A3A;
    --success-color: #3D5A47;

    /* Animation Timing (Brand Guideline Values) */
    --timing-instant: 200ms;
    --timing-quick: 400ms;
    --timing-standard: 600ms;
    --timing-luxurious: 800ms;
    --timing-cinematic: 1200ms;

    /* Easing Curves (Brand Guideline) */
    --ease-luxury: cubic-bezier(0.25, 0.1, 0.25, 1);
    --ease-enter: cubic-bezier(0, 0, 0.2, 1);
    --ease-exit: cubic-bezier(0.4, 0, 1, 1);

    /* Spacing Scale */
    --space-1: 4px;
    --space-2: 8px;
    --space-3: 12px;
    --space-4: 16px;
    --space-5: 20px;
    --space-6: 24px;
    --space-8: 32px;
    --space-10: 40px;
    --space-12: 48px;
    --space-16: 64px;
    --space-20: 80px;
    --space-24: 96px;
}

/* ========================================
   RESET & BASE STYLES
   ======================================== */

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

html {
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: 'Lato', -apple-system, BlinkMacSystemFont, sans-serif;
    color: var(--charcoal-smoke);
    line-height: 1.6;
    background: var(--ivory-silk);
    overflow-x: hidden;
}

/* ========================================
   TYPOGRAPHY - BRAND GUIDELINES
   ======================================== */

h1, h2, h3, h4, h5, h6 {
    font-family: 'Cormorant Garamond', serif;
    font-weight: 700;
    line-height: 1.2;
    letter-spacing: -0.02em;
    color: var(--midnight-black);
}

/* Display Typography */
.display-xl {
    font-size: 72px;
    font-weight: 800;
    letter-spacing: -0.03em;
}

.display-lg {
    font-size: 56px;
    font-weight: 700;
    letter-spacing: -0.02em;
}

/* Heading Typography */
.heading-xl {
    font-size: 42px;
    font-weight: 600;
}

.heading-lg {
    font-size: 32px;
    font-weight: 600;
}

/* Subheading Typography - Montserrat */
.subheading-lg {
    font-family: 'Montserrat', sans-serif;
    font-size: 20px;
    font-weight: 500;
    letter-spacing: 0.01em;
}

.subheading-md {
    font-family: 'Montserrat', sans-serif;
    font-size: 16px;
    font-weight: 500;
    letter-spacing: 0.01em;
}

/* Body Typography - Lato */
.body-lg {
    font-family: 'Lato', sans-serif;
    font-size: 18px;
    font-weight: 400;
    line-height: 1.7;
    letter-spacing: 0.02em;
}

.body-md {
    font-family: 'Lato', sans-serif;
    font-size: 16px;
    font-weight: 400;
    line-height: 1.6;
    letter-spacing: 0.02em;
}

/* ========================================
   UTILITY CLASSES
   ======================================== */

.hidden {
    display: none !important;
}

.fade-in {
    animation: fadeIn var(--timing-luxurious) var(--ease-luxury);
}

.slide-up {
    animation: slideUp var(--timing-luxurious) var(--ease-enter);
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(40px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ========================================
   LOGIN PAGE STYLES
   ======================================== */

.login-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--midnight-black);
    position: relative;
    overflow: hidden;
    padding: var(--space-6);
}

/* Constellation Background Pattern */
.constellation-pattern {
    position: absolute;
    inset: 0;
    background-image:
        radial-gradient(2px 2px at 20% 30%, var(--champagne-gold), transparent),
        radial-gradient(2px 2px at 60% 70%, var(--champagne-gold), transparent),
        radial-gradient(1px 1px at 50% 50%, var(--champagne-gold), transparent),
        radial-gradient(1px 1px at 80% 10%, var(--champagne-gold), transparent),
        radial-gradient(2px 2px at 30% 80%, var(--champagne-gold), transparent),
        radial-gradient(1px 1px at 70% 40%, var(--champagne-gold), transparent),
        radial-gradient(1px 1px at 15% 60%, var(--champagne-gold), transparent),
        radial-gradient(2px 2px at 90% 50%, var(--champagne-gold), transparent),
        radial-gradient(1px 1px at 40% 20%, var(--champagne-gold), transparent),
        radial-gradient(1px 1px at 65% 85%, var(--champagne-gold), transparent);
    background-size: 100% 100%;
    opacity: 0.03;
    pointer-events: none;
    animation: twinkle 8s ease-in-out infinite;
}

@keyframes twinkle {
    0%, 100% {
        opacity: 0.03;
    }
    50% {
        opacity: 0.06;
    }
}

/* Login Container - Glass Morphism */
.login-container {
    position: relative;
    z-index: 10;
    width: 100%;
    max-width: 480px;
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(212, 175, 55, 0.2);
    border-radius: 8px;
    padding: var(--space-16);
    box-shadow: 0 30px 80px rgba(0, 0, 0, 0.6);
}

.login-header {
    text-align: center;
    margin-bottom: var(--space-12);
}

.brand-logo {
    display: flex;
    justify-content: center;
    align-items: center;
    margin-bottom: var(--space-6);
}

.brand-logo-image {
    width: 300px;
    height: auto;
    max-width: 100%;
    filter: drop-shadow(0 4px 12px rgba(212, 175, 55, 0.3));
    transition: filter var(--timing-quick) var(--ease-luxury);
}

.login-tagline {
    font-family: 'Montserrat', sans-serif;
    font-size: 16px;
    font-weight: 300;
    color: var(--champagne-gold);
    letter-spacing: 0.1em;
    text-transform: uppercase;
}

/* Login Form */
.login-form {
    margin-bottom: var(--space-8);
}

.form-group {
    margin-bottom: var(--space-6);
}

.form-label {
    font-family: 'Montserrat', sans-serif;
    font-size: 14px;
    font-weight: 500;
    color: var(--ivory-silk);
    display: block;
    margin-bottom: var(--space-2);
    letter-spacing: 0.05em;
}

.form-input {
    width: 100%;
    padding: var(--space-4) var(--space-5);
    background: rgba(255, 255, 255, 0.08);
    border: 2px solid rgba(212, 175, 55, 0.2);
    border-radius: 4px;
    font-family: 'Lato', sans-serif;
    font-size: 16px;
    color: var(--ivory-silk);
    transition: all var(--timing-quick) var(--ease-luxury);
}

.form-input::placeholder {
    color: rgba(248, 246, 241, 0.4);
}

.form-input:focus {
    outline: none;
    border-color: var(--champagne-gold);
    background: rgba(255, 255, 255, 0.12);
    box-shadow: 0 0 0 4px rgba(212, 175, 55, 0.1);
}

/* Password Input Wrapper */
.password-input-wrapper {
    position: relative;
    display: flex;
    align-items: center;
}

.password-input-wrapper .form-input {
    padding-right: 50px;
}

.password-toggle {
    position: absolute;
    right: 12px;
    top: 50%;
    transform: translateY(-50%);
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 4px;
    transition: all var(--timing-quick) var(--ease-luxury);
}

.password-toggle:hover {
    background: rgba(212, 175, 55, 0.15);
}

.password-toggle:focus {
    outline: none;
    background: rgba(212, 175, 55, 0.2);
}

.eye-icon {
    width: 20px;
    height: 20px;
    color: rgba(248, 246, 241, 0.5);
    transition: color var(--timing-quick) var(--ease-luxury);
}

.password-toggle:hover .eye-icon {
    color: var(--champagne-gold);
}

.eye-icon.hidden {
    display: none;
}

/* Error Message */
.error-message {
    padding: var(--space-3) var(--space-4);
    background: rgba(139, 58, 58, 0.2);
    border: 1px solid var(--error-color);
    border-radius: 4px;
    color: #ffcccc;
    font-size: 14px;
    margin-bottom: var(--space-6);
    animation: shake var(--timing-quick) var(--ease-luxury);
}

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    25% { transform: translateX(-10px); }
    75% { transform: translateX(10px); }
}

/* Primary Button */
.btn-primary {
    width: 100%;
    padding: var(--space-4) var(--space-6);
    background: var(--champagne-gold);
    border: none;
    border-radius: 4px;
    font-family: 'Montserrat', sans-serif;
    font-size: 16px;
    font-weight: 600;
    color: var(--midnight-black);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    transition: all var(--timing-quick) var(--ease-luxury);
    position: relative;
    overflow: hidden;
}

.btn-primary::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg,
        transparent,
        rgba(255, 255, 255, 0.3),
        transparent);
    transition: left var(--timing-standard) var(--ease-luxury);
}

.btn-primary:hover::before {
    left: 100%;
}

.btn-primary:hover {
    background: var(--gold-400);
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(212, 175, 55, 0.4);
}

.btn-primary:active {
    transform: translateY(0);
}

.btn-arrow {
    font-size: 20px;
    transition: transform var(--timing-quick) var(--ease-luxury);
}

.btn-primary:hover .btn-arrow {
    transform: translateX(4px);
}

/* Login Footer */
.login-footer {
    text-align: center;
    font-size: 14px;
    color: rgba(248, 246, 241, 0.6);
    font-style: italic;
}

/* ========================================
   PORTAL PAGE STYLES
   ======================================== */

.portal-page {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    background: var(--ivory-silk);
}

/* Portal Header */
.portal-header {
    background: var(--midnight-black);
    padding: var(--space-6) 0;
    box-shadow: 0 4px 12px rgba(10, 10, 10, 0.1);
    position: sticky;
    top: 0;
    z-index: 100;
    animation: slideDown var(--timing-luxurious) var(--ease-enter);
}

@keyframes slideDown {
    from {
        transform: translateY(-100%);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

.header-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--space-8);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.header-left {
    display: flex;
    align-items: baseline;
    gap: var(--space-4);
}

.header-logo {
    font-family: 'Cormorant Garamond', serif;
    font-size: 28px;
    font-weight: 700;
    color: var(--ivory-silk);
    letter-spacing: -0.01em;
}

.header-subtitle {
    font-family: 'Montserrat', sans-serif;
    font-size: 14px;
    font-weight: 400;
    color: var(--champagne-gold);
    letter-spacing: 0.05em;
}

.header-right {
    display: flex;
    align-items: center;
    gap: var(--space-4);
}

.user-badge {
    padding: var(--space-2) var(--space-4);
    background: rgba(212, 175, 55, 0.1);
    border: 1px solid var(--champagne-gold);
    border-radius: 20px;
    font-family: 'Montserrat', sans-serif;
    font-size: 12px;
    font-weight: 500;
    color: var(--champagne-gold);
    letter-spacing: 0.1em;
    text-transform: uppercase;
}

.btn-logout {
    padding: var(--space-2) var(--space-5);
    background: transparent;
    border: 1px solid rgba(248, 246, 241, 0.3);
    border-radius: 4px;
    font-family: 'Montserrat', sans-serif;
    font-size: 14px;
    font-weight: 500;
    color: var(--ivory-silk);
    cursor: pointer;
    transition: all var(--timing-quick) var(--ease-luxury);
}

.btn-logout:hover {
    border-color: var(--champagne-gold);
    color: var(--champagne-gold);
    background: rgba(212, 175, 55, 0.1);
}

/* Portal Main Content */
.portal-main {
    flex: 1;
    padding: var(--space-16) 0;
}

.portal-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--space-8);
}

/* Portal Hero */
.portal-hero {
    text-align: center;
    margin-bottom: var(--space-16);
}

.portal-title {
    font-family: 'Cormorant Garamond', serif;
    font-size: 48px;
    font-weight: 700;
    color: var(--midnight-black);
    margin-bottom: var(--space-4);
    letter-spacing: -0.02em;
}

.portal-description {
    font-family: 'Lato', sans-serif;
    font-size: 18px;
    font-weight: 300;
    color: var(--charcoal-smoke);
    letter-spacing: 0.02em;
}

/* Presentation Grid */
.presentation-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(380px, 1fr));
    gap: var(--space-10);
    margin-bottom: var(--space-16);
}

/* Presentation Card - The Star of the Show */
.presentation-card {
    background: white;
    border: 2px solid var(--pearl-gray);
    border-radius: 8px;
    overflow: hidden;
    cursor: pointer;
    transition: all var(--timing-standard) var(--ease-luxury);
    transform: scale(0.98);
    filter: grayscale(0.2);
    position: relative;
}

.presentation-card::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg,
        rgba(212, 175, 55, 0.05) 0%,
        transparent 100%);
    opacity: 0;
    transition: opacity var(--timing-standard) var(--ease-luxury);
    pointer-events: none;
}

.presentation-card:hover {
    transform: scale(1.0) translateY(-8px);
    filter: grayscale(0);
    border-color: var(--champagne-gold);
    box-shadow:
        0 20px 60px rgba(10, 10, 10, 0.15),
        0 0 0 2px var(--champagne-gold);
}

.presentation-card:hover::before {
    opacity: 1;
}

/* Card Thumbnail */
.card-thumbnail {
    width: 100%;
    height: 280px;
    background: linear-gradient(135deg,
        var(--black-900) 0%,
        var(--black-800) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.card-thumbnail:not(:has(.card-thumbnail-image))::before,
.card-thumbnail:has(.card-thumbnail-image[style*="display: none"])::before {
    content: '✦';
    font-size: 80px;
    color: var(--champagne-gold);
    opacity: 0.25;
}

.card-thumbnail-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center top;
    transition: transform var(--timing-standard) var(--ease-luxury);
}

.presentation-card:hover .card-thumbnail-image {
    transform: scale(1.05);
}

/* Card Content */
.card-content {
    padding: var(--space-6);
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: var(--space-4);
}

.card-version {
    font-family: 'Montserrat', sans-serif;
    font-size: 12px;
    font-weight: 600;
    color: var(--charcoal-smoke);
    letter-spacing: 0.1em;
}

.card-status {
    padding: var(--space-1) var(--space-3);
    border-radius: 12px;
    font-family: 'Montserrat', sans-serif;
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

.status-latest {
    background: rgba(212, 175, 55, 0.15);
    color: var(--gold-900);
    border: 1px solid var(--champagne-gold);
}

.status-archived {
    background: rgba(44, 44, 44, 0.1);
    color: var(--charcoal-smoke);
    border: 1px solid var(--pearl-gray);
}

.status-active {
    background: rgba(61, 90, 71, 0.15);
    color: var(--success-color);
    border: 1px solid var(--success-color);
}

.card-title {
    font-family: 'Cormorant Garamond', serif;
    font-size: 28px;
    font-weight: 700;
    color: var(--midnight-black);
    margin-bottom: var(--space-2);
    line-height: 1.3;
}

.card-subtitle {
    font-family: 'Lato', sans-serif;
    font-size: 14px;
    color: var(--charcoal-smoke);
    margin-bottom: var(--space-5);
}

.card-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: var(--space-4);
    border-top: 1px solid var(--pearl-gray);
}

.card-date {
    font-family: 'Lato', sans-serif;
    font-size: 13px;
    color: var(--charcoal-smoke);
}

.card-category {
    font-family: 'Montserrat', sans-serif;
    font-size: 12px;
    font-weight: 500;
    color: var(--champagne-gold);
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

/* View Button */
.btn-view {
    width: 100%;
    padding: var(--space-3) var(--space-5);
    background: var(--midnight-black);
    border: 2px solid var(--midnight-black);
    border-radius: 4px;
    font-family: 'Montserrat', sans-serif;
    font-size: 14px;
    font-weight: 600;
    color: var(--ivory-silk);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    margin-top: var(--space-5);
    transition: all var(--timing-quick) var(--ease-luxury);
    position: relative;
    overflow: hidden;
}

.btn-view::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(90deg,
        var(--champagne-gold) 0%,
        var(--gold-300) 50%,
        var(--champagne-gold) 100%);
    background-size: 200% 100%;
    opacity: 0;
    transition: opacity var(--timing-quick) var(--ease-luxury);
}

.btn-view:hover::before {
    opacity: 1;
    animation: goldShimmer 3s linear infinite;
}

@keyframes goldShimmer {
    0% {
        background-position: -100% 0;
    }
    100% {
        background-position: 100% 0;
    }
}

.btn-view:hover {
    border-color: var(--champagne-gold);
    color: var(--midnight-black);
}

.btn-view span {
    position: relative;
    z-index: 1;
}

.btn-arrow-right {
    font-size: 16px;
    transition: transform var(--timing-quick) var(--ease-luxury);
}

.btn-view:hover .btn-arrow-right {
    transform: translateX(4px);
}

/* Loading State */
.loading-state {
    text-align: center;
    padding: var(--space-20);
}

.loading-shimmer {
    width: 60px;
    height: 60px;
    margin: 0 auto var(--space-6);
    border: 3px solid var(--pearl-gray);
    border-top-color: var(--champagne-gold);
    border-radius: 50%;
    animation: spin 1.5s linear infinite;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

.loading-state p {
    font-family: 'Lato', sans-serif;
    font-size: 16px;
    color: var(--charcoal-smoke);
}

/* Empty State */
.empty-state {
    text-align: center;
    padding: var(--space-24);
}

.empty-icon {
    font-size: 80px;
    margin-bottom: var(--space-6);
    opacity: 0.3;
}

.empty-state h3 {
    font-family: 'Cormorant Garamond', serif;
    font-size: 32px;
    font-weight: 600;
    color: var(--midnight-black);
    margin-bottom: var(--space-3);
}

.empty-state p {
    font-family: 'Lato', sans-serif;
    font-size: 16px;
    color: var(--charcoal-smoke);
}

/* Portal Footer */
.portal-footer {
    background: var(--midnight-black);
    padding: var(--space-8) 0;
    text-align: center;
}

.portal-footer p {
    font-family: 'Lato', sans-serif;
    font-size: 14px;
    color: rgba(248, 246, 241, 0.6);
}

/* ========================================
   RESPONSIVE DESIGN
   ======================================== */

/* Tablet */
@media (max-width: 1024px) {
    .presentation-grid {
        grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
        gap: var(--space-8);
    }

    .portal-title {
        font-size: 40px;
    }

    .header-subtitle {
        display: none;
    }
}

/* Mobile */
@media (max-width: 768px) {
    .presentation-grid {
        grid-template-columns: 1fr;
        gap: var(--space-6);
    }

    .portal-container {
        padding: 0 var(--space-5);
    }

    .portal-main {
        padding: var(--space-10) 0;
    }

    .portal-hero {
        margin-bottom: var(--space-10);
    }

    .portal-title {
        font-size: 32px;
    }

    .portal-description {
        font-size: 16px;
    }

    .header-container {
        padding: 0 var(--space-5);
    }

    .header-logo {
        font-size: 22px;
    }

    .user-badge {
        display: none;
    }

    .login-container {
        padding: var(--space-10);
    }

    .brand-logo-image {
        width: 240px;
    }

    .card-thumbnail {
        height: 200px;
    }

    .card-title {
        font-size: 24px;
    }
}

/* Small Mobile */
@media (max-width: 480px) {
    :root {
        font-size: 14px;
    }

    .portal-title {
        font-size: 28px;
    }

    .brand-logo-image {
        width: 200px;
    }
}

/* ========================================
   PRINT STYLES
   ======================================== */

@media print {
    .portal-header,
    .portal-footer,
    .btn-logout {
        display: none;
    }

    .presentation-card {
        page-break-inside: avoid;
    }
}

/* ========================================
   ACCESSIBILITY
   ======================================== */

/* Focus Styles */
*:focus-visible {
    outline: 3px solid var(--champagne-gold);
    outline-offset: 2px;
}

/* Reduced Motion */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* High Contrast Mode */
@media (prefers-contrast: high) {
    .presentation-card {
        border-width: 3px;
    }

    .btn-primary,
    .btn-view {
        border-width: 3px;
    }
}