/* ===== CSS Variables ===== */
:root {
    --bg-primary: #0a0a0f;
    --bg-secondary: #12121a;
    --bg-tertiary: #1a1a25;
    --bg-card: rgba(20, 20, 30, 0.8);
    --bg-card-hover: rgba(30, 30, 45, 0.9);
    
    --text-primary: #ffffff;
    --text-secondary: #a0a0b0;
    --text-muted: #606070;
    
    --accent-primary: #8b5cf6;
    --accent-secondary: #06b6d4;
    --accent-tertiary: #f472b6;
    --accent-gradient: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
    
    --border-color: rgba(139, 92, 246, 0.2);
    --border-hover: rgba(139, 92, 246, 0.4);
    
    --success: #22c55e;
    --warning: #f59e0b;
    --error: #ef4444;
    
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.5);
    --shadow-glow: 0 0 40px rgba(139, 92, 246, 0.3);
    
    --transition-fast: 0.15s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
}

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

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

body {
    font-family: 'Outfit', sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
    overflow-x: hidden;
}

/* ===== Background Effects ===== */
.background-effects {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 0;
    overflow: hidden;
}

.gradient-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.5;
    animation: float 20s ease-in-out infinite;
}

.orb-1 {
    width: 600px;
    height: 600px;
    background: var(--accent-primary);
    top: -200px;
    right: -200px;
    animation-delay: 0s;
}

.orb-2 {
    width: 500px;
    height: 500px;
    background: var(--accent-secondary);
    bottom: -150px;
    left: -150px;
    animation-delay: -7s;
}

.orb-3 {
    width: 400px;
    height: 400px;
    background: var(--accent-tertiary);
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    animation-delay: -14s;
    opacity: 0.3;
}

@keyframes float {
    0%, 100% { transform: translate(0, 0) scale(1); }
    25% { transform: translate(30px, -30px) scale(1.05); }
    50% { transform: translate(-20px, 20px) scale(0.95); }
    75% { transform: translate(-30px, -20px) scale(1.02); }
}

.grid-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        linear-gradient(rgba(139, 92, 246, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(139, 92, 246, 0.03) 1px, transparent 1px);
    background-size: 50px 50px;
}

/* ===== Container ===== */
.container {
    position: relative;
    z-index: 1;
    max-width: 800px;
    margin: 0 auto;
    padding: 2rem 1.5rem;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* ===== Header ===== */
.header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 3rem;
    padding: 1rem 0;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.logo-icon {
    width: 40px;
    height: 40px;
    color: var(--accent-primary);
}

.logo-text {
    font-size: 1.75rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    font-family: 'Space Mono', monospace;
}

.logo-accent {
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.header-badge {
    padding: 0.5rem 1rem;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    font-size: 0.875rem;
    color: var(--text-secondary);
    backdrop-filter: blur(10px);
}

/* ===== Main Content ===== */
.main-content {
    flex: 1;
}

/* ===== Form Sections ===== */
.form-section {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    margin-bottom: 1.5rem;
    backdrop-filter: blur(10px);
    transition: var(--transition-normal);
}

.form-section:hover {
    border-color: var(--border-hover);
    box-shadow: var(--shadow-md);
}

.section-header {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 1.25rem;
}

.section-icon {
    font-size: 1.25rem;
}

.section-header h3 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
}

/* ===== Form Groups ===== */
.form-group {
    margin-bottom: 1rem;
}

.form-group:last-child {
    margin-bottom: 0;
}

.form-group label {
    display: block;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
}

/* ===== Inputs ===== */
input[type="text"],
input[type="password"],
input[type="url"],
input[type="number"],
textarea {
    width: 100%;
    padding: 0.875rem 1rem;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-family: inherit;
    font-size: 1rem;
    transition: var(--transition-fast);
}

input::placeholder,
textarea::placeholder {
    color: var(--text-muted);
}

input:focus,
textarea:focus {
    outline: none;
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 3px rgba(139, 92, 246, 0.2);
}

textarea {
    resize: vertical;
    min-height: 120px;
}

.input-wrapper {
    position: relative;
}

.toggle-visibility {
    position: absolute;
    right: 0.75rem;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    padding: 0.5rem;
    transition: var(--transition-fast);
}

.toggle-visibility:hover {
    color: var(--text-primary);
}

.eye-icon {
    width: 20px;
    height: 20px;
}

.char-counter {
    text-align: right;
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-top: 0.5rem;
    font-family: 'Space Mono', monospace;
}

.hint {
    display: block;
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-top: 0.5rem;
}

/* ===== Toggle Group (Radio Buttons) ===== */
.toggle-group {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
}

.toggle-group input[type="radio"] {
    display: none;
}

.toggle-option {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 1.25rem 1rem;
    background: var(--bg-tertiary);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: var(--transition-fast);
    text-align: center;
}

.toggle-option:hover {
    border-color: var(--border-hover);
    background: var(--bg-card-hover);
}

.toggle-group input[type="radio"]:checked + .toggle-option {
    border-color: var(--accent-primary);
    background: rgba(139, 92, 246, 0.1);
    box-shadow: 0 0 20px rgba(139, 92, 246, 0.2);
}

.toggle-option span {
    font-weight: 500;
    color: var(--text-primary);
}

.toggle-option small {
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-top: 0.25rem;
}

/* ===== Aspect Preview ===== */
.aspect-preview {
    width: 48px;
    height: 32px;
    background: var(--accent-gradient);
    border-radius: 4px;
    margin-bottom: 0.5rem;
    opacity: 0.7;
    transition: var(--transition-fast);
}

.portrait-preview {
    width: 24px;
    height: 42px;
}

.toggle-group input[type="radio"]:checked + .toggle-option .aspect-preview {
    opacity: 1;
}

/* ===== Duration Number ===== */
.duration-number {
    font-size: 2rem;
    font-weight: 700;
    font-family: 'Space Mono', monospace;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
    margin-bottom: 0.25rem;
}

/* ===== Settings Grid ===== */
.settings-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
}

@media (max-width: 600px) {
    .settings-grid {
        grid-template-columns: 1fr;
    }
}

/* ===== Number Input ===== */
.number-input-wrapper {
    display: flex;
    align-items: center;
    gap: 0;
    max-width: 200px;
}

.number-input-wrapper input {
    text-align: center;
    border-radius: 0;
    border-left: none;
    border-right: none;
    -moz-appearance: textfield;
}

.number-input-wrapper input::-webkit-outer-spin-button,
.number-input-wrapper input::-webkit-inner-spin-button {
    -webkit-appearance: none;
    margin: 0;
}

.number-btn {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    font-size: 1.5rem;
    cursor: pointer;
    transition: var(--transition-fast);
}

.number-btn.minus {
    border-radius: var(--radius-md) 0 0 var(--radius-md);
}

.number-btn.plus {
    border-radius: 0 var(--radius-md) var(--radius-md) 0;
}

.number-btn:hover {
    background: var(--accent-primary);
    border-color: var(--accent-primary);
}

/* ===== Submit Button ===== */
.submit-btn {
    width: 100%;
    padding: 1.25rem 2rem;
    background: var(--accent-gradient);
    border: none;
    border-radius: var(--radius-lg);
    color: white;
    font-family: inherit;
    font-size: 1.125rem;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    transition: var(--transition-normal);
    box-shadow: var(--shadow-md), var(--shadow-glow);
    margin-top: 2rem;
}

.submit-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg), 0 0 60px rgba(139, 92, 246, 0.4);
}

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

.submit-btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

.btn-icon svg {
    width: 24px;
    height: 24px;
}

/* ===== Results Section ===== */
.results-section {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    margin-top: 2rem;
    backdrop-filter: blur(10px);
}

.tasks-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.task-card {
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 1rem 1.25rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
}

.task-info {
    flex: 1;
    min-width: 0;
}

.task-id {
    font-family: 'Space Mono', monospace;
    font-size: 0.875rem;
    color: var(--text-primary);
    word-break: break-all;
}

.task-status {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.25rem 0.75rem;
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.task-status.waiting {
    background: rgba(245, 158, 11, 0.2);
    color: var(--warning);
}

.task-status.success {
    background: rgba(34, 197, 94, 0.2);
    color: var(--success);
}

.task-status.fail {
    background: rgba(239, 68, 68, 0.2);
    color: var(--error);
}

.status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: currentColor;
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

.task-actions {
    display: flex;
    gap: 0.5rem;
}

.task-btn {
    padding: 0.5rem 1rem;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    font-size: 0.75rem;
    cursor: pointer;
    transition: var(--transition-fast);
}

.task-btn:hover {
    border-color: var(--accent-primary);
    color: var(--accent-primary);
}

.task-btn.download {
    background: var(--accent-gradient);
    border: none;
    color: white;
}

.task-btn.download:hover {
    opacity: 0.9;
}

/* ===== Loading Overlay ===== */
.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(10, 10, 15, 0.9);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    backdrop-filter: blur(4px);
}

.loading-content {
    text-align: center;
}

.loading-spinner {
    width: 60px;
    height: 60px;
    border: 3px solid var(--border-color);
    border-top-color: var(--accent-primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto 1.5rem;
}

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

.loading-content p {
    color: var(--text-secondary);
    font-size: 1rem;
}

/* ===== Toast ===== */
.toast {
    position: fixed;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%) translateY(100px);
    padding: 1rem 1.5rem;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-size: 0.875rem;
    z-index: 1001;
    backdrop-filter: blur(10px);
    transition: transform 0.3s ease;
    max-width: 90%;
}

.toast.show {
    transform: translateX(-50%) translateY(0);
}

.toast.success {
    border-color: var(--success);
}

.toast.error {
    border-color: var(--error);
}

/* ===== Footer ===== */
.footer {
    text-align: center;
    padding: 2rem 0 1rem;
    color: var(--text-muted);
    font-size: 0.875rem;
}

.footer strong {
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

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

/* ===== Video Preview ===== */
.video-preview {
    margin-top: 1rem;
    border-radius: var(--radius-md);
    overflow: hidden;
}

.video-preview video {
    width: 100%;
    max-height: 300px;
    object-fit: contain;
    background: black;
}

/* ===== Responsive ===== */
@media (max-width: 480px) {
    .container {
        padding: 1rem;
    }
    
    .header {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }
    
    .form-section {
        padding: 1.25rem;
    }
    
    .toggle-group {
        grid-template-columns: 1fr;
    }
    
    .task-card {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .task-actions {
        width: 100%;
    }
    
    .task-btn {
        flex: 1;
        text-align: center;
    }
}