/* =============================================================================
   KODAK STEP Printer Web UI - Matching Zane's Portfolio Branding
   ============================================================================= */

/* CSS Variables - Zane's color palette */
:root {
    /* Core colors */
    --bg-primary: #000;
    --bg-secondary: #111;
    --text-primary: #fff;
    --text-secondary: #ccc;
    --text-muted: #888;
    --border-color: rgba(255, 255, 255, 0.1);

    /* Accent gradient colors */
    --accent-purple: #9d59c9;
    --accent-red: #fd3f3f;
    --accent-orange: #fcb045;

    /* Glassmorphism */
    --glass-bg: rgba(255, 255, 255, 0.05);
    --glass-bg-hover: rgba(255, 255, 255, 0.1);
    --glass-blur: blur(12px);

    /* Typography */
    --font-heading: 'Figtree', sans-serif;
    --font-body: 'Inter', sans-serif;

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;

    /* Border radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-normal: 200ms ease;
    --transition-slow: 300ms ease;
}

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

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

body {
    font-family: var(--font-body);
    font-weight: 400;
    background-color: var(--bg-primary);
    color: var(--text-secondary);
    min-height: 100vh;
    line-height: 1.6;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 600;
    color: var(--text-primary);
    text-transform: lowercase;
}

/* Container */
.container {
    max-width: 600px;
    margin: 0 auto;
    padding: var(--spacing-lg);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Header */
.header {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.title {
    font-size: 2rem;
    margin-bottom: var(--spacing-xs);
    letter-spacing: -0.02em;
}

.subtitle {
    font-size: 0.875rem;
    color: var(--text-muted);
    text-transform: lowercase;
}

/* Main */
.main {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

/* Sections */
.section {
    display: flex;
    flex-direction: column;
    align-items: center;
}

/* Glass effect */
.glass {
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    transition: background var(--transition-normal);
}

.glass:hover {
    background: var(--glass-bg-hover);
}

/* Gradient text - animated like Zane's special text */
.gradient-text {
    background: linear-gradient(
        90deg,
        var(--accent-purple) 0%,
        var(--accent-red) 30%,
        var(--accent-orange) 60%,
        var(--accent-purple) 100%
    );
    background-size: 200% 100%;
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    animation: gradient-shift 3s linear infinite;
}

@keyframes gradient-shift {
    0% { background-position: 0% 50%; }
    100% { background-position: 200% 50%; }
}

/* Gradient button */
.gradient-btn {
    background: linear-gradient(
        135deg,
        var(--accent-purple) 0%,
        var(--accent-red) 50%,
        var(--accent-orange) 100%
    );
    border: none;
    color: var(--text-primary);
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 1rem;
    text-transform: lowercase;
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.gradient-btn:hover {
    transform: scale(1.02);
    box-shadow: 0 4px 20px rgba(157, 89, 201, 0.4);
}

.gradient-btn:active {
    transform: scale(0.98);
}

.gradient-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
}

/* =============================================================================
   QR Code Section
   ============================================================================= */
.qr-section {
    display: none; /* Hidden by default, shown on presenter mode */
}

.qr-section.visible {
    display: flex;
}

.qr-container {
    padding: var(--spacing-md);
    display: flex;
    align-items: center;
    justify-content: center;
}

.qr-container canvas {
    display: block;
    max-width: 200px;
    max-height: 200px;
}

.qr-hint {
    margin-top: var(--spacing-sm);
    font-size: 0.875rem;
    color: var(--text-muted);
    text-transform: lowercase;
}

.qr-url {
    margin-top: var(--spacing-xs);
    font-size: 0.75rem;
    color: var(--text-muted);
    word-break: break-all;
    opacity: 0.7;
}

/* =============================================================================
   Upload Section
   ============================================================================= */
.upload-section {
    width: 100%;
}

.upload-area {
    width: 100%;
    padding: var(--spacing-xl);
    cursor: pointer;
    position: relative;
    overflow: hidden;
}

.upload-area:hover {
    border-color: var(--accent-purple);
}

.upload-area.dragover {
    background: rgba(157, 89, 201, 0.1);
    border-color: var(--accent-purple);
}

.upload-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-sm);
}

.upload-icon {
    width: 48px;
    height: 48px;
    color: var(--text-muted);
    transition: color var(--transition-normal);
}

.upload-area:hover .upload-icon {
    color: var(--accent-purple);
}

.upload-text {
    font-size: 1rem;
    color: var(--text-primary);
    text-transform: lowercase;
}

.upload-hint {
    font-size: 0.875rem;
    color: var(--accent-orange);
    text-transform: lowercase;
}

.upload-area input[type="file"] {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    cursor: pointer;
}

/* Hidden state */
.upload-section.hidden {
    display: none;
}

/* =============================================================================
   Preview Section
   ============================================================================= */
.preview-container {
    width: 100%;
    margin-top: var(--spacing-md);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-md);
}

.preview-container.hidden {
    display: none;
}

.preview-image {
    max-width: 100%;
    max-height: 300px;
    border-radius: var(--radius-md);
    object-fit: contain;
}

.preview-actions {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    width: 100%;
    max-width: 300px;
}

.name-input {
    width: 100%;
    padding: var(--spacing-sm);
    font-family: var(--font-body);
    font-size: 1rem;
    color: var(--text-primary);
    text-align: center;
    outline: none;
}

.name-input::placeholder {
    color: var(--text-muted);
}

.name-input:focus {
    border-color: var(--accent-purple);
}

.cancel-btn {
    padding: var(--spacing-xs) var(--spacing-md);
    font-family: var(--font-body);
    font-size: 0.875rem;
    color: var(--text-muted);
    cursor: pointer;
    text-transform: lowercase;
}

.cancel-btn:hover {
    color: var(--text-primary);
}

/* =============================================================================
   Status Section
   ============================================================================= */
.status-section {
    width: 100%;
}

.status-container {
    width: 100%;
    padding: var(--spacing-lg);
    text-align: center;
}

.status-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto var(--spacing-md);
}

.status-icon svg {
    width: 100%;
    height: 100%;
}

.status-icon .icon-waiting { color: var(--text-muted); }
.status-icon .icon-printing { color: var(--accent-purple); }
.status-icon .icon-done { color: var(--accent-orange); }
.status-icon .icon-error { color: var(--accent-red); }

.status-icon svg.hidden {
    display: none;
}

/* Printing animation */
.status-icon.printing .icon-printing {
    animation: pulse 1.5s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.7; transform: scale(0.95); }
}

.status-title {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-xs);
}

.status-message {
    font-size: 0.875rem;
    color: var(--text-muted);
}

/* Progress bar */
.progress-container {
    margin-top: var(--spacing-md);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.progress-container.hidden {
    display: none;
}

.progress-bar {
    flex: 1;
    height: 8px;
    background: var(--bg-secondary);
    border-radius: 4px;
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    width: 0%;
    background: linear-gradient(
        90deg,
        var(--accent-purple) 0%,
        var(--accent-red) 50%,
        var(--accent-orange) 100%
    );
    border-radius: 4px;
    transition: width var(--transition-normal);
}

.progress-text {
    font-size: 0.875rem;
    color: var(--text-muted);
    min-width: 3em;
}

/* Winner container */
.winner-container {
    margin-top: var(--spacing-md);
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--border-color);
}

.winner-container.hidden {
    display: none;
}

.winner-label {
    font-size: 0.875rem;
    color: var(--text-muted);
    text-transform: lowercase;
    margin-bottom: var(--spacing-xs);
}

.winner-name {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 600;
}

/* Reset button */
.reset-btn {
    margin-top: var(--spacing-md);
    padding: var(--spacing-sm) var(--spacing-lg);
    font-family: var(--font-body);
    font-size: 0.875rem;
    color: var(--text-secondary);
    cursor: pointer;
    text-transform: lowercase;
}

.reset-btn.hidden {
    display: none;
}

.reset-btn:hover {
    color: var(--text-primary);
    border-color: var(--accent-purple);
}

/* =============================================================================
   Footer
   ============================================================================= */
.footer {
    margin-top: var(--spacing-xl);
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--border-color);
    text-align: center;
}

.footer-text {
    font-size: 0.75rem;
    color: var(--text-muted);
    text-transform: lowercase;
}

.print-count {
    margin-top: var(--spacing-xs);
    font-size: 0.75rem;
    color: var(--text-muted);
    text-transform: lowercase;
}

/* =============================================================================
   Utility Classes
   ============================================================================= */
.hidden {
    display: none !important;
}

/* =============================================================================
   States
   ============================================================================= */

/* Waiting state */
body.state-waiting .upload-section {
    display: flex;
}

body.state-waiting .status-section .status-icon .icon-waiting {
    display: block;
}

/* Printing state */
body.state-printing .upload-section {
    display: none;
}

body.state-printing .status-section .progress-container {
    display: flex;
}

body.state-printing .status-section .status-icon {
    color: var(--accent-purple);
}

body.state-printing .status-section .status-icon.printing .icon-printing {
    display: block;
}

/* Done state */
body.state-done .upload-section {
    display: none;
}

body.state-done .status-section .winner-container {
    display: block;
}

body.state-done .reset-btn {
    display: block;
}

/* Error state */
body.state-error .upload-section {
    display: none;
}

body.state-error .reset-btn {
    display: block;
}

/* =============================================================================
   Responsive
   ============================================================================= */
@media (max-width: 480px) {
    .container {
        padding: var(--spacing-md);
    }

    .title {
        font-size: 1.5rem;
    }

    .upload-area {
        padding: var(--spacing-lg);
    }

    .upload-icon {
        width: 40px;
        height: 40px;
    }

    .status-icon {
        width: 48px;
        height: 48px;
    }

    .status-title {
        font-size: 1.125rem;
    }

    .winner-name {
        font-size: 1.25rem;
    }
}

/* =============================================================================
   Presenter Mode (larger screens)
   ============================================================================= */
@media (min-width: 1024px) {
    .container {
        max-width: 800px;
    }

    .title {
        font-size: 2.5rem;
    }

    .qr-container canvas {
        max-width: 300px;
        max-height: 300px;
    }

    .status-icon {
        width: 80px;
        height: 80px;
    }

    .status-title {
        font-size: 1.5rem;
    }

    .winner-name {
        font-size: 2rem;
    }
}

/* Presenter mode layout - show QR prominently */
body.presenter-mode .container {
    max-width: 1200px;
}

body.presenter-mode .main {
    flex-direction: row;
    align-items: flex-start;
    gap: var(--spacing-xl);
}

body.presenter-mode .qr-section {
    flex: 0 0 auto;
}

body.presenter-mode .status-section {
    flex: 1;
}

body.presenter-mode .upload-section {
    display: none;
}