/**
 * Artsan Transfer - Global Stylesheet
 * Pure CSS3 (No Tailwind dependencies required)
 */

/* ==========================================================================
   1. CSS Variables & Theme Setup
   ========================================================================== */
:root {
    /* Brand Color Palette */
    --color-burgundy: #5C061E;
    --color-burgundy-dark: #4A0316;
    --color-gold: #C5A059;
    --color-gold-light: #D4B67B;
    
    /* Typography */
    --font-sans: 'Plus Jakarta Sans', system-ui, -apple-system, blinkmacsystemfont, 'Segoe UI', roboto, sans-serif;
    --font-serif: 'Cormorant Garamond', Georgia, serif;
    --font-logo: 'Cinzel', serif;
    --font-subtitle: 'Montserrat', sans-serif;
    
    /* Transitions */
    --transition-theme: background-color 0.6s cubic-bezier(0.16, 1, 0.3, 1), color 0.6s cubic-bezier(0.16, 1, 0.3, 1), border-color 0.6s cubic-bezier(0.16, 1, 0.3, 1);
    --transition-fast: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

/* Light Theme Variables (Default) */
html[data-theme="light"] {
    --bg-page: #FFFFFF;
    --accent-top-line: var(--color-burgundy);
    --text-title: var(--color-burgundy);
    --text-company: var(--color-burgundy);
    --text-headline: var(--color-burgundy);
    --text-description: #555555;
    --text-copyright: #888888;
    --divider-color: rgba(181, 148, 91, 0.4);
    
    --toggle-border: #E5E7EB;
    --toggle-text: #4B5563;
    --toggle-hover-bg: #F9FAFB;
    
    --email-label: #888888;
    --email-text: var(--color-burgundy);
    --email-border: rgba(92, 6, 30, 0.2);
    --email-hover: var(--color-gold);
}

/* Dark Theme Variables */
html[data-theme="dark"] {
    --bg-page: var(--color-burgundy);
    --accent-top-line: var(--color-gold);
    --text-title: var(--color-gold);
    --text-company: var(--color-gold);
    --text-headline: var(--color-gold);
    --text-description: #D1D5DB;
    --text-copyright: #9CA3AF;
    --divider-color: rgba(197, 160, 89, 0.5);
    
    --toggle-border: rgba(197, 160, 89, 0.3);
    --toggle-text: var(--color-gold);
    --toggle-hover-bg: rgba(197, 160, 89, 0.1);
    
    --email-label: rgba(197, 160, 89, 0.7);
    --email-text: #FFFFFF;
    --email-border: rgba(197, 160, 89, 0.3);
    --email-hover: var(--color-gold);
}

/* ==========================================================================
   2. Base Reset & Layout
   ========================================================================== */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html, body {
    height: 100%;
    width: 100%;
    font-family: var(--font-sans);
    background-color: var(--bg-page);
    color: var(--text-description);
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.page-container {
    position: relative;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    align-items: center;
    min-height: 100vh;
    min-height: 100dvh;
    width: 100%;
    background-color: var(--bg-page);
    text-align: center;
    padding: 2.5rem 1.25rem 1.5rem;
    user-select: none;
    transition: var(--transition-theme);
    overflow: hidden;
}

/* Top Decorative Accent Line */
.top-accent-line {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background-color: var(--accent-top-line);
    transition: background-color 0.6s ease;
    z-index: 10;
}

/* ==========================================================================
   3. Theme Toggle Button
   ========================================================================== */
.theme-toggle-wrapper {
    position: absolute;
    top: 1.25rem;
    right: 1.25rem;
    z-index: 20;
}

.theme-toggle-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0.375rem 0.75rem;
    border-radius: 9999px;
    border: 1px solid var(--toggle-border);
    background: transparent;
    color: var(--toggle-text);
    cursor: pointer;
    font-family: var(--font-sans);
    transition: var(--transition-fast);
}

.theme-toggle-btn:hover {
    background-color: var(--toggle-hover-bg);
}

.theme-toggle-btn:active {
    transform: scale(0.95);
}

.icon-wrapper {
    display: flex;
    align-items: center;
    gap: 0.375rem;
}

/* Toggle visibility depending on html[data-theme] */
html[data-theme="light"] .icon-sun-wrapper {
    display: none;
}

html[data-theme="dark"] .icon-moon-wrapper {
    display: none;
}

.theme-label {
    font-size: 0.625rem; /* 10px */
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.icon {
    display: inline-block;
    vertical-align: middle;
}

/* ==========================================================================
   4. Main Content Sections
   ========================================================================== */
.main-content {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    align-items: center;
    width: 100%;
    height: 100%;
    max-width: 42rem; /* 672px */
    margin: 0 auto;
    flex: 1;
}

/* Header Section (Logo + Company Title) */
.header-section {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
    width: 100%;
    margin-top: 0.5rem;
}

.logo-wrapper {
    width: 100%;
    max-width: 36rem; /* 576px */
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 4.5rem;
}

.logo-img {
    display: block;
    width: min(100%, 34rem);
    height: auto;
    max-height: none;
    object-fit: contain;
    border-radius: 0.25rem;
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.12);
    transition: transform 0.5s ease, box-shadow 0.5s ease;
}

.logo-img:hover {
    transform: scale(1.015);
    box-shadow: 0 16px 38px rgba(0, 0, 0, 0.16);
}

/* CSS Logo Fallback (Matching uploaded image) */
.logo-fallback {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 1.25rem 2rem;
    border-radius: 0.75rem;
    text-align: center;
    background-color: var(--color-burgundy);
    border: 1px solid rgba(197, 160, 89, 0.25);
    box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.2);
    transition: var(--transition-fast);
}

.logo-fallback.hidden {
    display: none !important;
}

.logo-text-row {
    position: relative;
    display: flex;
    align-items: center;
}

.logo-brand-text {
    font-family: var(--font-logo);
    font-size: 1.875rem; /* 30px */
    font-weight: 400;
    letter-spacing: 0.18em;
    color: var(--color-gold);
    line-height: 1;
    text-transform: uppercase;
}

.logo-trademark {
    position: absolute;
    top: -0.25rem;
    right: -0.875rem;
    font-family: var(--font-sans);
    font-size: 0.625rem;
    font-weight: 600;
    color: var(--color-gold);
    line-height: 1;
}

.logo-subtitle {
    font-family: var(--font-subtitle);
    font-size: 0.4375rem; /* 7px */
    font-weight: 700;
    letter-spacing: 0.22em;
    color: var(--color-gold);
    text-transform: uppercase;
    margin-top: 0.625rem;
    white-space: nowrap;
}

/* Company Title */
.company-title {
    font-size: 0.5625rem; /* 9px */
    font-weight: 600;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--text-company);
    max-width: 20rem;
    line-height: 1.5;
    transition: color 0.6s ease;
}

/* Middle Section: Coming Soon & Description */
.middle-section {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
    margin: auto 0;
    padding: 1rem 0;
    max-width: 36rem;
}

.headline {
    font-family: var(--font-serif);
    font-size: 2.5rem; /* 40px mobile */
    font-weight: 300;
    letter-spacing: -0.02em;
    color: var(--text-headline);
    line-height: 1;
    transition: color 0.6s ease;
}

.divider {
    width: 2.75rem;
    height: 1px;
    background-color: var(--divider-color);
    border-radius: 9999px;
    transition: background-color 0.6s ease;
}

.description {
    font-size: 0.8125rem; /* 13px */
    font-weight: 400;
    letter-spacing: 0.02em;
    color: var(--text-description);
    line-height: 1.6;
    max-width: 18rem;
    transition: color 0.6s ease;
}

/* Footer Section: Email Link & Copyright */
.footer-section {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1.25rem;
    width: 100%;
    margin-bottom: 0.5rem;
}

.email-link {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.375rem;
    text-decoration: none;
    transition: transform 0.3s ease;
}

.email-link:active {
    transform: scale(0.98);
}

.email-label {
    font-size: 0.5rem; /* 8px */
    font-weight: 600;
    letter-spacing: 0.25em;
    text-transform: uppercase;
    color: var(--email-label);
    transition: color 0.3s ease;
}

.email-box {
    display: flex;
    align-items: center;
    gap: 0.375rem;
    border-bottom: 1px solid var(--email-border);
    padding-bottom: 0.125rem;
    color: var(--email-text);
    transition: var(--transition-fast);
}

.email-link:hover .email-box {
    border-color: var(--email-hover);
    color: var(--email-hover);
}

.email-address {
    font-size: 0.8125rem; /* 13px mobile */
    font-weight: 500;
    letter-spacing: 0.05em;
}

.icon-external {
    opacity: 0;
    transition: opacity 0.3s ease;
}

.email-link:hover .icon-external {
    opacity: 1;
}

.copyright {
    font-size: 0.5rem; /* 8px */
    font-weight: 300;
    letter-spacing: 0.05em;
    color: var(--text-copyright);
    line-height: 1.4;
    max-width: 16rem;
    transition: color 0.6s ease;
}

/* ==========================================================================
   5. Keyframe Animations
   ========================================================================== */
.fade-in-down {
    animation: fadeInDown 1.2s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

.fade-in {
    animation: fadeIn 1.2s cubic-bezier(0.16, 1, 0.3, 1) 0.2s forwards;
    opacity: 0;
}

.fade-in-up {
    animation: fadeInUp 1.2s cubic-bezier(0.16, 1, 0.3, 1) 0.4s forwards;
    opacity: 0;
}

@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ==========================================================================
   6. Media Queries (Responsive Breakpoints)
   ========================================================================== */

/* Tablet & Medium Devices (640px and up) */
@media (min-width: 640px) {
    .page-container {
        padding: 3rem 2rem 2rem;
    }
    
    .logo-img {
        width: min(100%, 32rem);
    }
    
    .logo-brand-text {
        font-size: 2.25rem; /* 36px */
    }
    
    .logo-subtitle {
        font-size: 0.5rem; /* 8px */
    }
    
    .company-title {
        font-size: 0.625rem; /* 10px */
        letter-spacing: 0.16em;
        max-width: 28rem;
    }
    
    .headline {
        font-size: 3.5rem; /* 56px */
    }
    
    .description {
        font-size: 0.875rem; /* 14px */
        max-width: 22rem;
    }
    
    .email-address {
        font-size: 0.9375rem; /* 15px */
    }
    
    .copyright {
        font-size: 0.5625rem; /* 9px */
        max-width: 22rem;
    }
}

/* Desktop & Large Devices (1024px and up) */
@media (min-width: 1024px) {
    .page-container {
        padding: 4rem 3rem 2.5rem;
    }
    
    .logo-img {
        width: min(100%, 34rem);
    }
    
    .logo-brand-text {
        font-size: 3rem; /* 48px */
    }
    
    .logo-subtitle {
        font-size: 0.625rem; /* 10px */
    }
    
    .company-title {
        font-size: 0.75rem; /* 12px */
        max-width: 32rem;
    }
    
    .headline {
        font-size: 4.5rem; /* 72px */
    }
    
    .description {
        font-size: 1rem; /* 16px */
        max-width: 26rem;
    }
    
    .email-address {
        font-size: 1rem; /* 16px */
    }
}

/* Very Small Height Screens (e.g. Mobile Landscape or short phones) */
@media (max-height: 600px) {
    .page-container {
        min-height: auto;
        height: auto;
        overflow-y: auto;
        padding-top: 4rem;
        padding-bottom: 2rem;
    }
    
    .middle-section {
        margin: 2rem 0;
    }
}


@media (max-width: 420px) {
    .logo-wrapper {
        max-width: 100%;
    }

    .logo-img {
        width: 100%;
        border-radius: 0.1875rem;
    }
}