/*
====================================
  CSS RESET & BASE STYLES
  - Standardizes default browser styles
  - Sets up base font and layout
====================================
*/

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

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

@import url('https://fonts.googleapis.com/css2?family=Cinzel:wght@400;600;700;900&family=Playfair+Display:wght@400;600;700&display=swap');

@import url('https://fonts.googleapis.com/css2?family=Cinzel:wght@400;600;700;900&family=Playfair+Display:wght@400;600;700&family=EB+Garamond:wght@400;500;600;700&display=swap');

body {
    font-family: 'EB Garamond', 'Georgia', serif;
    line-height: 1.6;
    color: #fbbf24;
    /* Clean deep blue gradient background */
    background: linear-gradient(135deg, #0f172a 0%, #1e3a8a 50%, #1e40af 100%);
    min-height: 100vh;
    position: relative;
    padding-bottom: 0;
    overflow-x: hidden;
}

.container, .header, .main-content, .upload-section, .control-panel, .preview-section, .instructions, .footer {
    position: relative;
    z-index: 1;
}

/*
====================================
  UTILITY CLASSES
  - Helper classes for visibility and layout
====================================
*/

.hidden {
    display: none !important;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    position: relative;
}

/*
====================================
  HEADER STYLES
  - Event branding, banner, and title design
====================================
*/

.header {
    text-align: center;
    margin-bottom: 60px;
    padding: 70px;
    background: 
        linear-gradient(145deg, rgba(255, 255, 255, 0.98) 0%, rgba(254, 252, 240, 0.96) 50%, rgba(255, 255, 255, 0.98) 100%);
    border-radius: 20px;
    box-shadow: 
        0 30px 80px rgba(15, 23, 42, 0.4),
        0 0 0 2px rgba(218, 165, 32, 0.6),
        inset 0 4px 20px rgba(218, 165, 32, 0.08);
    color: #1e3a8a;
    border: 3px solid rgba(218, 165, 32, 0.7);
    position: relative;
    overflow: hidden;
    transform: translateY(0);
    transition: all 0.3s ease;
}

.header::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    background: 
        radial-gradient(ellipse 600px 400px at 50% 30%, rgba(218, 165, 32, 0.12) 0%, transparent 70%),
        linear-gradient(135deg, transparent 0%, rgba(218, 165, 32, 0.05) 20%, rgba(184, 134, 11, 0.08) 50%, rgba(218, 165, 32, 0.05) 80%, transparent 100%);
    pointer-events: none;
    z-index: 1;
}

.header::after {
    content: '';
    position: absolute;
    top: 20px;
    right: 20px;
    width: 80px;
    height: 60px;
    background: url('data:image/svg+xml;utf8,<svg width="80" height="60" viewBox="0 0 80 60" fill="none" xmlns="http://www.w3.org/2000/svg"><path d="M10 30 Q20 20, 30 30 Q40 40, 50 30 Q60 20, 70 30" stroke="%23DAA520" stroke-width="2" fill="none" opacity="0.3"/><path d="M15 35 Q25 25, 35 35 Q45 45, 55 35 Q65 25, 75 35" stroke="%23B8860B" stroke-width="2" fill="none" opacity="0.25"/><rect x="8" y="25" width="64" height="10" rx="2" stroke="%23DAA520" stroke-width="1" fill="none" opacity="0.2"/></svg>');
    background-size: contain;
    background-repeat: no-repeat;
    opacity: 0.4;
    pointer-events: none;
    z-index: 1;
}

.event-banner {
    position: relative;
    z-index: 2;
    margin-bottom: 50px;
}

.banner-glow {
    position: absolute;
    top: -30px;
    left: -30px;
    right: -30px;
    bottom: -30px;
    background: radial-gradient(ellipse at center, rgba(251, 191, 36, 0.15) 0%, transparent 70%);
    filter: blur(15px);
    z-index: -1;
}

.statue-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: none;
    z-index: 1;
}

.laurel-left, .laurel-right {
    position: absolute;
    top: 50%;
    width: 60px;
    height: 90px;
    background: none;
    z-index: 1;
}

.laurel-left {
    left: 30px;
    transform: translateY(-50%);
}

.laurel-right {
    right: 30px;
    transform: translateY(-50%) scaleX(-1);
}

.festival-info {
    position: relative;
    z-index: 2;
}

.title {
    font-size: clamp(2.5rem, 6.5vw, 4.2rem);
    font-weight: 900;
    margin-bottom: 30px;
    text-shadow: 
        2px 2px 4px rgba(30, 58, 138, 0.3),
        0 0 25px rgba(218, 165, 32, 0.4),
        0 0 50px rgba(218, 165, 32, 0.2);
    font-family: 'Cinzel', 'Georgia', serif;
    letter-spacing: 0.12em;
    position: relative;
    z-index: 3;
    color: #1e3a8a;
    text-transform: uppercase;
    line-height: 1.2;
    background: linear-gradient(135deg, #1e3a8a 0%, #1e40af 30%, #3b82f6 60%, #1e3a8a 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    filter: drop-shadow(1px 1px 2px rgba(30, 58, 138, 0.2));
}

.title::before {
    content: '';
    position: absolute;
    top: -20px;
    left: 50%;
    width: 120%;
    height: calc(100% + 40px);
    background: 
        radial-gradient(ellipse 800px 200px at 50% 50%, rgba(218, 165, 32, 0.15) 0%, transparent 70%);
    transform: translateX(-50%);
    z-index: -1;
    pointer-events: none;
    border-radius: 30px;
}

.title::after {
    content: '';
    position: absolute;
    bottom: -15px;
    left: 50%;
    width: 200px;
    height: 4px;
    background: linear-gradient(90deg, transparent 0%, rgba(218, 165, 32, 0.6) 20%, rgba(184, 134, 11, 0.8) 50%, rgba(218, 165, 32, 0.6) 80%, transparent 100%);
    transform: translateX(-50%);
    border-radius: 2px;
    box-shadow: 0 0 15px rgba(218, 165, 32, 0.4);
}

.banner-subtitle {
    font-size: clamp(1.3rem, 3.5vw, 1.8rem);
    font-weight: 700;
    margin-bottom: 40px;
    text-shadow: 
        1px 1px 3px rgba(218, 165, 32, 0.4),
        0 0 20px rgba(218, 165, 32, 0.5),
        0 0 35px rgba(184, 134, 11, 0.3);
    font-family: 'Cinzel', 'Georgia', serif;
    letter-spacing: 0.08em;
    color: #B8860B;
    text-transform: uppercase;
    position: relative;
    z-index: 3;
    background: linear-gradient(135deg, #DAA520 0%, #B8860B 30%, #CD853F 60%, #B8860B 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    filter: drop-shadow(1px 1px 2px rgba(184, 134, 11, 0.3));
}

.subtitle {
    font-size: clamp(1.2rem, 3vw, 1.5rem);
    opacity: 0.95;
    font-weight: 600;
    font-family: 'EB Garamond', 'Georgia', serif;
    letter-spacing: 0.04em;
    position: relative;
    z-index: 3;
    color: #1e3a8a;
    margin-bottom: 25px;
    text-transform: uppercase;
    text-shadow: 0 1px 3px rgba(30, 58, 138, 0.2);
}

.event-text {
    font-size: clamp(1rem, 2.2vw, 1.2rem);
    line-height: 1.7;
    color: #374151;
    font-family: 'EB Garamond', 'Georgia', serif;
    text-shadow: 0 1px 2px rgba(55, 65, 81, 0.1);
    position: relative;
    z-index: 3;
    max-width: 800px;
    margin: 0 auto;
    font-weight: 500;
    padding: 25px 35px;
    background: rgba(255, 255, 255, 0.6);
    border-radius: 15px;
    border: 1px solid rgba(218, 165, 32, 0.2);
    box-shadow: 
        0 8px 25px rgba(30, 58, 138, 0.15),
        inset 0 2px 10px rgba(218, 165, 32, 0.05);
}

/*
====================================
  MAIN CONTENT
  - Main layout and content area
====================================
*/

.main-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    position: relative;
    z-index: 1;
    min-height: calc(100vh - 300px);
}

/*
====================================
  UPLOAD SECTION
  - Upload area, Greek frame, and drag-and-drop styling
====================================
*/

.upload-container {
    position: relative;
    z-index: 2;
    max-width: 500px;
    margin: 0 auto;
}

.greek-frame-border {
    position: relative;
    padding: 40px;
    background: transparent;
    border-radius: 0;
    border: none;
    box-shadow: none;
}

.upload-section::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    background: none;
    pointer-events: none;
}

.divine-upload-container {
    position: relative;
    z-index: 2;
}

.greek-border {
    position: relative;
    padding: 20px;
    background: 
        linear-gradient(145deg, rgba(251, 191, 36, 0.1) 0%, rgba(251, 191, 36, 0.05) 100%);
    border-radius: 20px;
    border: 2px solid rgba(251, 191, 36, 0.3);
    box-shadow: 
        inset 0 2px 10px rgba(251, 191, 36, 0.1),
        0 4px 20px rgba(251, 191, 36, 0.2);
}

/*
====================================
  UPLOAD SECTION STYLES
  - Upload area, drag-over, and file input enhancements
====================================
*/

.upload-section {
    margin-bottom: 60px;
    text-align: center;
    padding: 30px;
    min-height: calc(100vh - 200px);
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.98);
    border-radius: 15px;
    box-shadow: 
        0 20px 60px rgba(15, 23, 42, 0.2),
        0 0 0 1px rgba(251, 191, 36, 0.1);
    border: none;
    transition: all 0.4s ease;
    position: relative;
    overflow: hidden;
}

.upload-container {
    display: flex;
    justify-content: center;
    align-items: center;
    width: 100%;
    max-width: 800px;
    margin: 0 auto;
}

.upload-area {
    position: relative;
    cursor: pointer;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 70px;
    background: 
        linear-gradient(145deg, rgba(255, 255, 255, 0.98) 0%, rgba(248, 250, 252, 0.95) 100%);
    border-radius: 25px;
    box-shadow: 
        0 25px 80px rgba(15, 23, 42, 0.3),
        0 0 0 4px rgba(218, 165, 32, 0.4),
        inset 0 4px 30px rgba(218, 165, 32, 0.12);
    transition: all 0.4s ease;
    min-width: 600px;
    min-height: 450px;
    border: 3px solid rgba(218, 165, 32, 0.5);
    
    /* Enhanced Greek-inspired pattern overlay */
    background-image: 
        radial-gradient(circle at 20% 20%, rgba(218, 165, 32, 0.12) 0%, transparent 60%),
        radial-gradient(circle at 80% 80%, rgba(30, 58, 138, 0.08) 0%, transparent 60%),
        radial-gradient(circle at 50% 50%, rgba(218, 165, 32, 0.06) 0%, transparent 80%);
}

.upload-area::before {
    content: '';
    position: absolute;
    top: -3px;
    left: -3px;
    right: -3px;
    bottom: -3px;
    background: linear-gradient(45deg, 
        #DAA520 0%, #B8860B 20%, #DAA520 40%, #B8860B 60%, #DAA520 80%, #B8860B 100%);
    border-radius: 28px;
    z-index: -1;
    opacity: 0.7;
}

.upload-content {
    text-align: center;
    z-index: 10;
    position: relative;
}

.upload-icon {
    font-size: 5.5rem;
    margin-bottom: 35px;
    color: #1e3a8a;
    text-shadow: 
        0 4px 15px rgba(30, 58, 138, 0.4),
        0 0 30px rgba(218, 165, 32, 0.3);
    transition: all 0.4s ease;
    filter: drop-shadow(0 0 20px rgba(218, 165, 32, 0.2));
}

.upload-area h3 {
    color: #1e3a8a;
    font-size: 2.8rem;
    margin-bottom: 25px;
    font-weight: 700;
    font-family: 'Cinzel', 'Georgia', serif;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    text-shadow: 
        2px 2px 4px rgba(30, 58, 138, 0.3),
        0 0 20px rgba(218, 165, 32, 0.15);
    position: relative;
}

.upload-area h3::after {
    content: '';
    position: absolute;
    bottom: -12px;
    left: 50%;
    width: 100px;
    height: 3px;
    background: linear-gradient(90deg, transparent, #DAA520, #B8860B, #DAA520, transparent);
    transform: translateX(-50%);
    box-shadow: 0 0 10px rgba(218, 165, 32, 0.4);
}

.upload-area p {
    color: #64748b;
    font-size: 1.5rem;
    font-family: 'EB Garamond', 'Georgia', serif;
    font-weight: 500;
    line-height: 1.4;
    margin: 0;
    font-style: italic;
    text-shadow: 0 1px 3px rgba(100, 116, 139, 0.2);
}

/* Hover Effects - Sports Fest themed */
.upload-area:hover {
    transform: translateY(-8px);
    box-shadow: 
        0 40px 100px rgba(15, 23, 42, 0.35),
        0 0 0 4px rgba(218, 165, 32, 0.6),
        inset 0 4px 35px rgba(218, 165, 32, 0.18);
    border-color: rgba(218, 165, 32, 0.7);
}

.upload-area:hover::before {
    opacity: 0.9;
    transform: scale(1.03);
    box-shadow: 0 0 40px rgba(218, 165, 32, 0.4);
}

.upload-area:hover .upload-icon {
    transform: scale(1.12);
    color: #DAA520;
    text-shadow: 
        0 4px 20px rgba(218, 165, 32, 0.5),
        0 0 35px rgba(218, 165, 32, 0.4);
    filter: drop-shadow(0 0 30px rgba(218, 165, 32, 0.3));
}

.upload-area:hover h3 {
    color: #1e3a8a;
    text-shadow: 
        2px 2px 5px rgba(30, 58, 138, 0.4),
        0 0 25px rgba(218, 165, 32, 0.3);
}

.upload-area:hover h3::after {
    width: 120px;
    height: 4px;
    box-shadow: 0 0 15px rgba(218, 165, 32, 0.6);
}

/* Drag Over Effects - Olympic/Champion theme */
.upload-area.drag-over {
    transform: translateY(-8px);
    box-shadow: 
        0 45px 110px rgba(15, 23, 42, 0.4),
        0 0 0 5px rgba(218, 165, 32, 0.8),
        inset 0 4px 40px rgba(218, 165, 32, 0.25);
    background: 
        linear-gradient(145deg, rgba(254, 252, 232, 0.98) 0%, rgba(253, 248, 220, 0.95) 100%);
    border-color: rgba(218, 165, 32, 0.9);
}

.upload-area.drag-over::before {
    opacity: 1;
    animation: golden-pulse 1s ease-in-out infinite alternate;
    box-shadow: 0 0 50px rgba(218, 165, 32, 0.5);
}

.upload-area.drag-over .upload-icon {
    transform: scale(1.18);
    color: #B8860B;
    animation: champion-glow 0.8s ease-in-out infinite alternate;
    filter: drop-shadow(0 0 40px rgba(218, 165, 32, 0.4));
}

@keyframes golden-pulse {
    0% { 
        opacity: 0.9; 
        transform: scale(1.03);
        box-shadow: 0 0 40px rgba(218, 165, 32, 0.4);
    }
    100% { 
        opacity: 1; 
        transform: scale(1.04);
        box-shadow: 0 0 60px rgba(218, 165, 32, 0.6);
    }
}

@keyframes champion-glow {
    0% { 
        text-shadow: 
            0 4px 20px rgba(218, 165, 32, 0.6),
            0 0 40px rgba(218, 165, 32, 0.5);
        filter: drop-shadow(0 0 30px rgba(218, 165, 32, 0.3));
    }
    100% { 
        text-shadow: 
            0 4px 25px rgba(218, 165, 32, 0.8),
            0 0 50px rgba(218, 165, 32, 0.7);
        filter: drop-shadow(0 0 45px rgba(218, 165, 32, 0.5));
    }
}

.file-input {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    cursor: pointer;
    z-index: 20;
}

/*
====================================
  CONTROL PANEL
  - Controls for frame generator adjustments
====================================
*/

.control-panel {
    background: rgba(255, 255, 255, 0.98);
    border-radius: 20px;
    padding: 35px;
    box-shadow: 
        0 20px 60px rgba(15, 23, 42, 0.2),
        0 0 0 2px rgba(218, 165, 32, 0.3);
    border: 2px solid rgba(218, 165, 32, 0.4);
    position: relative;
    overflow: hidden;
}
.control-panel::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    background: url('data:image/svg+xml;utf8,<svg width="80" height="80" viewBox="0 0 80 80" fill="none" xmlns="http://www.w3.org/2000/svg"><path d="M10 10 L70 10 L70 70 L10 70 Z" stroke="%231e3a8a" stroke-width="0.5" fill="none" opacity="0.08"/><circle cx="40" cy="40" r="15" stroke="%23DAA520" stroke-width="0.5" fill="none" opacity="0.1"/></svg>');
    background-size: 80px 80px;
    background-repeat: repeat;
    opacity: 0.4;
    pointer-events: none;
}

.control-panel h3 {
    color: #1e3a8a;
    font-size: 1.6rem;
    margin-bottom: 30px;
    font-weight: 700;
    text-align: center;
    font-family: 'Georgia', 'Times New Roman', serif;
    letter-spacing: 0.02em;
    position: relative;
    z-index: 1;
}

.controls-grid {
    display: grid;
    gap: 25px;
    margin-bottom: 30px;
}

.control-group {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.control-group label {
    font-weight: 600;
    color: #374151;
    font-size: 1rem;
}

.slider-container {
    display: flex;
    align-items: center;
    gap: 15px;
    background: linear-gradient(145deg, #f8fafc 0%, #f1f5f9 100%);
    padding: 18px;
    border-radius: 12px;
    border: 2px solid #e2e8f0;
    box-shadow: inset 0 2px 6px rgba(30, 58, 138, 0.1);
    position: relative;
    z-index: 1;
}

.slider {
    flex: 1;
    height: 8px;
    border-radius: 4px;
    background: #e5e7eb;
    outline: none;
    appearance: none;
    cursor: pointer;
}

.slider::-webkit-slider-thumb {
    appearance: none;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: #1e3a8a;
    cursor: pointer;
    box-shadow: 0 2px 6px rgba(30, 58, 138, 0.3);
    transition: all 0.2s ease;
}

.slider::-webkit-slider-thumb:hover {
    background: #fbbf24;
    transform: scale(1.1);
}

.slider::-moz-range-thumb {
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: #1e3a8a;
    cursor: pointer;
    border: none;
    box-shadow: 0 2px 6px rgba(30, 58, 138, 0.3);
}

.slider-value {
    min-width: 50px;
    text-align: center;
    font-weight: 600;
    color: #1e3a8a;
    background: white;
    padding: 5px 10px;
    border-radius: 6px;
    border: 1px solid #1e3a8a;
    font-size: 0.9rem;
}

/*
====================================
  BUTTONS
  - Primary and secondary button styles
====================================
*/

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 16px 32px;
    border: none;
    border-radius: 12px;
    font-size: 1.1rem;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
    min-height: 55px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
    font-family: 'EB Garamond', 'Georgia', serif;
    letter-spacing: 0.03em;
    text-transform: uppercase;
}

.btn-primary {
    background: linear-gradient(145deg, #1e3a8a, #1e40af);
    color: white;
    border: 2px solid #DAA520;
    box-shadow: 0 4px 15px rgba(30, 58, 138, 0.3);
}

.btn-primary:hover {
    background: linear-gradient(145deg, #1e40af, #1e3a8a);
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(30, 58, 138, 0.5), 0 0 20px rgba(218, 165, 32, 0.3);
    border-color: #DAA520;
}

.btn-primary:active {
    transform: translateY(-1px);
    box-shadow: 0 4px 15px rgba(30, 58, 138, 0.4);
}

.btn-secondary {
    background: linear-gradient(145deg, #DAA520, #B8860B);
    color: #1e3a8a;
    border: 2px solid #1e3a8a;
    font-weight: 800;
}

.btn-secondary:hover {
    background: linear-gradient(145deg, #B8860B, #DAA520);
    color: #1e3a8a;
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(218, 165, 32, 0.4);
}

.btn-icon {
    font-size: 1.1rem;
}

#resetBtn {
    width: 100%;
    justify-self: center;
    margin-bottom: 10px;
}

#downloadBtn {
    width: 100%;
    font-size: 1.1rem;
    padding: 16px 32px;
    margin-top: 20px;
}

/*
====================================
  PREVIEW SECTION
  - Canvas preview and layout
====================================
*/

.preview-section {
    display: block;
    padding: 40px;
    background: rgba(255, 255, 255, 0.98);
    border-radius: 15px;
    box-shadow: 
        0 20px 60px rgba(15, 23, 42, 0.2),
        0 0 0 1px rgba(251, 191, 36, 0.1);
    border: none;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: stretch;
    gap: 20px;
    position: relative;
    overflow: hidden;
    margin-bottom: 40px;
    margin-top: 40px;
}
.preview-section::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    background: none;
    pointer-events: none;
}

.preview-section h3 {
    color: #1e3a8a;
    font-size: 1.6rem;
    margin-bottom: 30px;
    font-weight: 700;
    text-align: center;
    font-family: 'Georgia', 'Times New Roman', serif;
    letter-spacing: 0.02em;
    position: relative;
    z-index: 1;
}

.canvas-container {
    display: flex;
    justify-content: center;
    margin: 0 auto 10px auto;
    padding: 25px;
    background: linear-gradient(145deg, #f8fafc 0%, #f1f5f9 100%);
    border-radius: 15px;
    border: 2px solid #e2e8f0;
    box-shadow: inset 0 3px 10px rgba(30, 58, 138, 0.1);
    position: relative;
    z-index: 1;
}

#previewCanvas {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    background: white;
}

/*
====================================
  INSTRUCTIONS SECTION
  - Step-by-step user instructions
====================================
*/

.instructions {
    background: rgba(255, 255, 255, 0.98);
    border-radius: 15px;
    padding: 55px;
    box-shadow: 
        0 20px 60px rgba(15, 23, 42, 0.2),
        0 0 0 1px rgba(251, 191, 36, 0.1);
    border: none;
    position: relative;
    overflow: hidden;
    margin-bottom: 80px;
}

.instructions::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    background: none;
    pointer-events: none;
}

.instructions-header {
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 50px;
    position: relative;
    z-index: 2;
}

.instructions h3 {
    color: #1e3a8a;
    font-size: 2rem;
    margin-bottom: 0;
    font-weight: 900;
    text-align: center;
    font-family: 'Cinzel', 'Georgia', serif;
    letter-spacing: 0.08em;
    position: relative;
    z-index: 2;
    text-transform: uppercase;
    text-shadow: 1px 1px 2px rgba(30, 58, 138, 0.2);
}

.instruction-steps {
    display: grid;
    gap: 20px;
}

.step {
    display: flex;
    align-items: flex-start;
    gap: 20px;
    padding: 25px;
    background: linear-gradient(145deg, #f8fafc 0%, #f1f5f9 100%);
    border-radius: 15px;
    border-left: 4px solid #fbbf24;
    box-shadow: 0 4px 15px rgba(30, 58, 138, 0.1);
    position: relative;
    z-index: 1;
}

.step-number {
    width: 60px;
    height: 60px;
    background: linear-gradient(145deg, #1e3a8a, #1e40af);
    color: #fbbf24;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 900;
    font-size: 1.8rem;
    flex-shrink: 0;
    box-shadow: 
        0 6px 20px rgba(30, 58, 138, 0.4),
        0 0 25px rgba(251, 191, 36, 0.3);
    border: 3px solid #fbbf24;
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.5);
    font-family: 'Cinzel', 'Georgia', serif;
    position: relative;
    line-height: 1;
    text-align: center;
}

.step-content h4 {
    color: #1e3a8a;
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 8px;
    font-family: 'Georgia', 'Times New Roman', serif;
    letter-spacing: 0.01em;
}

.step-content p {
    color: #475569;
    font-size: 1rem;
    line-height: 1.6;
    font-family: 'Georgia', 'Times New Roman', serif;
}

/*
====================================
  FOOTER
  - Footer branding and event info
====================================
*/

.footer {
    width: 100%;
    background: 
        linear-gradient(145deg, #0a0f1a 0%, #1e3a8a 50%, #0a0f1a 100%);
    color: #fbbf24;
    border-top: 2px solid #fbbf24;
    position: static;
    left: auto;
    bottom: auto;
    z-index: auto;
    padding: 0;
    box-shadow: 
        0 -15px 40px rgba(251, 191, 36, 0.15),
        inset 0 1px 0 rgba(251, 191, 36, 0.2);
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    padding: 30px 40px;
    font-family: 'EB Garamond', 'Georgia', serif;
    font-size: 1rem;
    letter-spacing: 0.03em;
    gap: 20px;
}

.footer-main {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
}

.footer-project {
    font-weight: 700;
    color: #fbbf24;
    font-size: 1.3rem;
    letter-spacing: 0.08em;
    text-shadow: 0 0 12px rgba(251, 191, 36, 0.4);
    text-transform: uppercase;
}

.footer-dev {
    color: #ffffff;
    font-weight: 500;
    font-size: 1rem;
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.6);
}

.footer-event {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    margin-top: 15px;
    padding-top: 20px;
    border-top: 1px solid rgba(251, 191, 36, 0.2);
}

.event-dates {
    font-weight: 600;
    color: #fbbf24;
    font-size: 1.2rem;
    letter-spacing: 0.06em;
    text-shadow: 0 0 10px rgba(251, 191, 36, 0.3);
    text-transform: uppercase;
}

.event-location {
    color: #e2e8f0;
    font-weight: 500;
    font-size: 1rem;
    text-align: center;
    line-height: 1.5;
    text-transform: uppercase;
    letter-spacing: 0.04em;
}
.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
    padding: 14px 24px 10px 24px;
    font-family: 'Fira Mono', 'Consolas', 'Menlo', 'Monaco', 'Liberation Mono', 'Courier New', monospace;
    font-size: 1rem;
    letter-spacing: 0.04em;
}
.footer-project {
    font-weight: 700;
    color: #fff;
    font-size: 1.08rem;
    letter-spacing: 0.08em;
}
.footer-dev {
    color: #fbbf24;
    font-weight: 500;
    font-size: 1rem;
}
@media (max-width: 700px) {
  .footer-content {
    flex-direction: column;
    gap: 2px;
    text-align: center;
    padding: 10px 8px 8px 8px;
    font-size: 0.97rem;
  }
  .footer-project {
    font-size: 1.04rem;
  }
  .footer-dev {
    font-size: 0.97rem;
  }
}

/*
====================================
  PREVIEW SECTION VISIBILITY
  - Utility classes for toggling preview visibility
====================================
*/

.preview-section.hidden {
    display: none !important;
    visibility: hidden !important;
    opacity: 0 !important;
    height: 0 !important;
    overflow: hidden !important;
}

.preview-section:not(.hidden) {
    display: flex !important;
    visibility: visible !important;
    opacity: 1 !important;
    transform: none !important;
    position: relative !important;
    z-index: 10 !important;
    height: auto !important;
    overflow: visible !important;
}

/* Force visibility when JavaScript sets display block */
.preview-section[style*="display: block"] {
    display: flex !important;
    visibility: visible !important;
    opacity: 1 !important;
    height: auto !important;
    overflow: visible !important;
}

/* Additional fallback for visibility */
.preview-section.visible {
    display: flex !important;
    visibility: visible !important;
    opacity: 1 !important;
    height: auto !important;
    overflow: visible !important;
}

/*
====================================
  LOADING INDICATOR
  - Fullscreen loading overlay and spinner
====================================
*/

.loading {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    color: white;
}

.loading-spinner {
    width: 50px;
    height: 50px;
    border: 4px solid #374151;
    border-top: 4px solid #fbbf24;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-bottom: 20px;
}

.loading p {
    font-size: 1.1rem;
    font-weight: 500;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/*
====================================
  RESPONSIVE DESIGN
  - Media queries for tablet, mobile, and accessibility
====================================
*/

/* Tablet Styles */
@media (max-width: 768px) {
    .container {
        padding: 15px;
    }

    .header {
        padding: 20px;
        margin-bottom: 40px;
    }

    .main-content {
        gap: 25px;
        min-height: 0;
    }

    .upload-section {
        min-height: 0;
        padding: 30px;
        margin-bottom: 40px;
    }

    .upload-section,
    .control-panel,
    .preview-section,
    .instructions {
        padding: 25px;
    }

    .upload-area {
        padding: 45px;
        min-width: 380px;
        min-height: 280px;
    }

    .upload-icon {
        font-size: 4rem;
        margin-bottom: 24px;
    }

    .upload-area h3 {
        font-size: 1.9rem;
    }

    .upload-area p {
        font-size: 1.2rem;
    }

    .controls-grid {
        gap: 20px;
    }

    .slider-container {
        padding: 12px;
    }

    .step {
        padding: 15px;
        gap: 15px;
    }

    .step-number {
        width: 35px;
        height: 35px;
        font-size: 1rem;
    }
}

/* Mobile Styles */
@media (max-width: 480px) {
    .container {
        padding: 10px;
    }

    .header {
        padding: 20px;
        margin-bottom: 35px;
        border-radius: 15px;
    }

    .main-content {
        gap: 20px;
        min-height: 0;
    }

    .upload-section {
        min-height: 0;
        padding: 25px;
        margin-bottom: 35px;
    }

    .upload-section,
    .control-panel,
    .preview-section,
    .instructions {
        padding: 20px;
        border-radius: 12px;
    }

    .upload-area {
        padding: 35px;
        min-width: 300px;
        min-height: 240px;
    }

    .upload-icon {
        font-size: 3.5rem;
        margin-bottom: 20px;
    }

    .upload-area h3 {
        font-size: 1.6rem;
        margin-bottom: 14px;
    }

    .upload-area h3::after {
        width: 40px;
    }

    .upload-area p {
        font-size: 1.1rem;
    }

    .control-panel h3,
    .preview-section h3,
    .instructions h3 {
        font-size: 1.3rem;
        margin-bottom: 20px;
    }

    .controls-grid {
        gap: 18px;
        margin-bottom: 25px;
    }

    .slider-container {
        padding: 10px;
        gap: 10px;
    }

    .btn {
        padding: 12px 24px;
        font-size: 0.95rem;
        min-height: 45px;
    }

    #downloadBtn {
        font-size: 1rem;
        padding: 14px 28px;
    }

    .step {
        padding: 12px;
        gap: 12px;
    }

    .step-number {
        width: 30px;
        height: 30px;
        font-size: 0.9rem;
    }

    .step-content h4 {
        font-size: 1rem;
    }

    .step-content p {
        font-size: 0.9rem;
    }

    .canvas-container {
        padding: 15px;
    }

    #previewCanvas {
        max-width: 100%;
        max-height: 300px;
    }
}

/* Very Small Mobile Styles */
@media (max-width: 320px) {
    .upload-area {
        padding: 28px;
        min-width: 260px;
        min-height: 200px;
    }

    .upload-icon {
        font-size: 3rem;
        margin-bottom: 18px;
    }

    .upload-area h3 {
        font-size: 1.4rem;
    }

    .upload-area h3::after {
        width: 30px;
    }

    .upload-area p {
        font-size: 1rem;
    }

    .btn {
        padding: 15px;
        font-size: 0.9rem;
    }

    .control-panel,
    .preview-section,
    .instructions {
        padding: 12px;
    }
}

/* Touch-friendly enhancements */
@media (pointer: coarse) {
    .btn {
        min-height: 48px;
        padding: 14px 28px;
    }

    .slider {
        height: 10px;
    }

    .slider::-webkit-slider-thumb {
        width: 24px;
        height: 24px;
    }

    .slider::-moz-range-thumb {
        width: 24px;
        height: 24px;
    }

    .upload-area {
        min-height: 180px;
    }
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    .upload-area {
        border-width: 4px;
    }

    .btn {
        border-width: 3px;
    }

    .slider {
        height: 10px;
    }
}

/* Reduced motion support */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }

    .loading-spinner {
        animation: none;
        border-top-color: transparent;
    }
}

.editor-row {
    display: flex;
    flex-direction: row;
    gap: 30px;
    margin-bottom: 30px;
}

.control-panel,
.preview-section {
    flex: 1 1 0;
    min-width: 0;
}

@media (max-width: 900px) {
    .editor-row {
        flex-direction: column;
        gap: 20px;
    }
}

.controls-in-preview {
    background: #fff;
    border-radius: 14px;
    box-shadow: 0 4px 16px rgba(0,0,0,0.07);
    padding: 24px 20px 18px 20px;
    margin-bottom: 24px;
    border: 1px solid #e5e7eb;
}
@media (max-width: 600px) {
    .controls-in-preview {
        padding: 14px 8px 10px 8px;
        margin-bottom: 14px;
    }
}

.controls-canvas-row {
    display: flex;
    flex-direction: row;
    gap: 32px;
    align-items: flex-start;
    justify-content: center;
}

.controls-col {
    flex: 1 1 260px;
    max-width: 320px;
    min-width: 200px;
    display: flex;
    flex-direction: column;
    gap: 18px;
}

.canvas-col {
    flex: 1 1 400px;
    min-width: 260px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 18px;
}

@media (max-width: 900px) {
    .controls-canvas-row {
        flex-direction: column;
        gap: 18px;
    }
    .controls-col, .canvas-col {
        max-width: 100%;
        min-width: 0;
        width: 100%;
        align-items: stretch;
    }
}

/*
====================================
  FRAME SELECTOR (YEAR FRAMES)
  - Frame selection controls and layout
====================================
*/
.frame-selector {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 10px;
    margin-bottom: 18px;
    flex-wrap: wrap;
}
.frame-btn {
    background: #1e3a8a;
    color: #fff;
    border: 2px solid #fbbf24;
    border-radius: 8px;
    padding: 8px 18px;
    font-size: 1rem;
    font-family: inherit;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.2s, color 0.2s, border 0.2s;
    outline: none;
    letter-spacing: 0.04em;
}
.frame-btn.selected {
    background: #fbbf24;
    color: #1e3a8a;
    border-color: #1e3a8a;
    /* Remove focus styling from selected to avoid double red */
    outline: none;
}
.frame-btn:focus:not(.selected) {
    outline: 2px solid #fbbf24;
    outline-offset: 2px;
}
.frame-btn:hover:not(.selected) {
    background: #fbbf24;
    color: #1e3a8a;
    border-color: #1e3a8a;
}
@media (max-width: 600px) {
    .frame-selector {
        gap: 6px;
        margin-bottom: 12px;
    }
    .frame-btn {
        font-size: 0.97rem;
        padding: 7px 10px;
    }
}

/* Ensure frame selector stays horizontal and centered on mobile */
.frame-selector.frame-selector-inline-top {
  display: flex;
  flex-direction: row;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: 12px;
  margin-bottom: 18px;
  margin-left: 0;
  width: 100%;
}

.frame-selector.frame-selector-inline-top .frame-btn {
  white-space: nowrap;
}

@media (max-width: 600px) {
  .frame-selector.frame-selector-inline-top {
    flex-direction: row !important;
    flex-wrap: wrap !important;
    justify-content: center !important;
    align-items: center !important;
    gap: 8px !important;
    margin-bottom: 12px !important;
  }
}

@media (max-width: 900px) {
  .frame-selector.frame-selector-inline-top {
    flex-direction: row !important;
    flex-wrap: wrap !important;
    justify-content: center !important;
    align-items: center !important;
    gap: 10px !important;
    margin-bottom: 16px !important;
  }
}

/* === Stack controls below preview for balance === */
.canvas-controls-stack {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 18px;
    width: 100%;
}

.controls-stack {
    width: 100%;
    max-width: 420px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
}

.controls-grid.vertical {
    display: flex;
    flex-direction: column;
    gap: 18px;
    margin-bottom: 0;
}

/* Centered headings for preview and controls */
.preview-section h3,
.controls-stack h3 {
    text-align: center;
}

/* Center canvas container */
.canvas-container {
    margin: 0 auto 10px auto;
}

#resetBtn {
    margin: 16px auto 0 auto;
    display: block;
    width: 100%;
    max-width: 420px;
}

#downloadBtn {
    margin: 24px auto 0 auto;
    display: block;
    width: 100%;
    max-width: 420px;
}

/* === Symmetric, vertically centered preview & controls === */
.controls-canvas-row.align-vertical {
    display: flex;
    flex-direction: row;
    align-items: center;
    justify-content: center;
    gap: 48px;
    width: 100%;
}

.canvas-col {
    display: flex;
    flex-direction: column;
    align-items: center;
    flex: 1 1 0;
    min-width: 420px;
    max-width: 480px;
}

.controls-col.align-controls-center {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    flex: 1 1 0;
    min-width: 320px;
    max-width: 420px;
    height: 100%;
}

.controls-col.align-controls-center > h3 {
    text-align: center;
}

@media (max-width: 900px) {
  .controls-canvas-row.align-vertical {
    flex-direction: column;
    align-items: stretch;
    gap: 24px;
  }
  .canvas-col, .controls-col.align-controls-center {
    min-width: 0;
    max-width: 100%;
  }
}

/* Horizontal alignment for preview and controls */
.controls-canvas-row.align-horizontal {
  display: flex;
  flex-direction: row;
  align-items: flex-start;
  justify-content: center;
  gap: 32px;
  width: 100%;
}

.canvas-frame-row {
  display: flex;
  flex-direction: row;
  align-items: center;
  gap: 32px;
}

.canvas-container {
  display: flex;
  justify-content: center;
  align-items: center;
}

.controls-col.align-controls-side {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  justify-content: center;
  min-width: 260px;
  max-width: 320px;
  height: 420px;
  gap: 18px;
}

.frame-selector.frame-selector-inline {
  display: flex;
  flex-direction: row;
  justify-content: center;
  align-items: center;
  gap: 12px;
  margin-bottom: 24px;
}

.frame-selector.frame-selector-inline-top {
  display: flex;
  flex-direction: row;
  flex-wrap: nowrap;
  justify-content: flex-start;
  align-items: center;
  gap: 18px;
  margin-bottom: 18px;
  margin-left: 0;
  width: 100%;
}

.frame-selector.frame-selector-inline-top .frame-btn {
  white-space: nowrap;
}

@media (max-width: 600px) {
  .frame-selector.frame-selector-inline-top {
    flex-direction: row !important;
    flex-wrap: wrap !important;
    justify-content: center !important;
    align-items: center !important;
    gap: 8px !important;
    margin-bottom: 12px !important;
  }
}

@media (max-width: 900px) {
  .frame-selector.frame-selector-inline-top {
    flex-direction: row !important;
    flex-wrap: wrap !important;
    justify-content: center !important;
    align-items: center !important;
    gap: 10px !important;
    margin-bottom: 16px !important;
  }
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  border: 0;
}

@media (max-width: 900px) {
  .controls-canvas-row.align-horizontal,
  .canvas-frame-row {
    flex-direction: column;
    align-items: stretch;
    gap: 18px;
  }
  .controls-col.align-controls-side {
    min-width: 0;
    max-width: 100%;
    align-items: stretch;
  }
  .frame-selector.frame-selector-inline {
    flex-direction: column;
    gap: 8px;
    margin-bottom: 16px;
  }
}

/* Make the preview canvas larger and align controls for symmetry */
.large-canvas {
  width: 420px;
  height: 420px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.canvas-container canvas {
  width: 100% !important;
  height: 100% !important;
  max-width: 420px;
  max-height: 420px;
}

.canvas-frame-row {
  display: flex;
  flex-direction: row;
  align-items: stretch;
  gap: 32px;
}

.controls-col.align-controls-side {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-width: 420px;
  max-width: 420px;
  height: 420px;
  gap: 18px;
  position: relative;
}

@media (max-width: 900px) {
  .canvas-frame-row {
    flex-direction: column;
    align-items: center;
    gap: 18px;
  }
  .large-canvas, .controls-col.align-controls-side {
    width: 100%;
    max-width: 100%;
    min-width: 0;
    height: auto;
  }
  .frame-selector.frame-selector-inline {
    flex-direction: column;
    gap: 8px;
    margin-bottom: 16px;
  }
}

/* Frame selector vertical beside the preview, then controls below it */
.canvas-frame-row.align-frame-selector {
  display: flex;
  flex-direction: row;
  align-items: flex-start;
  gap: 32px;
}

.frame-selector.frame-selector-vertical {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 32px;
  align-items: flex-start;
}

.controls-col.align-controls-side {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-width: 420px;
  max-width: 420px;
  height: 420px;
  gap: 18px;
  position: relative;
}

.controls-grid.vertical {
  margin-top: 0;
}

@media (max-width: 900px) {
  .canvas-frame-row.align-frame-selector {
    flex-direction: column;
    align-items: center;
    gap: 18px;
  }
  .frame-selector.frame-selector-vertical {
    flex-direction: row;
    gap: 8px;
    margin-bottom: 16px;
    align-items: center;
  }
  .controls-col.align-controls-side {
    min-width: 0;
    max-width: 100%;
    height: auto;
  }
}

/* Align reset button with the bottom of the preview image and keep frame selector above the image */
.frame-selector.frame-selector-inline-top {
  display: flex;
  flex-direction: row;
  justify-content: flex-start;
  align-items: center;
  gap: 18px;
  margin-bottom: 18px;
  margin-left: 0;
}

.canvas-frame-row {
  display: flex;
  flex-direction: row;
  align-items: flex-start;
  gap: 32px;
  position: relative;
}

.large-canvas {
  width: 420px;
  height: 420px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.controls-col.align-controls-side {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-width: 420px;
  max-width: 420px;
  height: 420px;
  gap: 18px;
  position: relative;
}

.controls-grid.vertical {
  flex: 1 1 auto;
  width: 100%;
}

#resetBtn {
  margin-top: auto;
  align-self: flex-end;
  width: 100%;
  max-width: 220px;
}

@media (max-width: 900px) {
  .frame-selector.frame-selector-inline-top {
    flex-direction: column;
    gap: 8px;
    margin-bottom: 12px;
    align-items: flex-start;
  }
  .canvas-frame-row {
    flex-direction: column;
    align-items: center;
    gap: 18px;
  }
  .large-canvas, .controls-col.align-controls-side {
    width: 100%;
    max-width: 100%;
    min-width: 0;
    height: auto;
  }
  #resetBtn {
    max-width: 100%;
    align-self: stretch;
  }
}

@media (max-width: 600px) {
  .controls-col.align-controls-side {
    min-width: 0 !important;
    max-width: 100% !important;
    width: 100% !important;
    height: auto !important;
    align-items: stretch !important;
    justify-content: flex-start !important;
    padding: 0 !important;
  }
}