/* =============================================
   AIMOTION Tool Base Stylesheet v1.0
   Shared design system for all tool sub-pages.

   Usage: Each tool page sets CSS custom properties
   before linking this file:

   --tc:          Primary accent hex      (#F59E0B)
   --tc-light:    Light accent hex        (#FBBF24)
   --tc-dark:     Dark accent hex         (#D97706)
   --tc-rgb:      Primary accent RGB      (245, 158, 11)
   --tc-light-rgb: Light accent RGB       (251, 191, 36)
   --tc-dark-rgb:  Dark accent RGB        (217, 119, 6)
   ============================================= */

/* =========================================
   SCROLLBAR
   ========================================= */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: #0a0a0c;
}

::-webkit-scrollbar-thumb {
    background: linear-gradient(180deg, var(--tc), var(--tc-dark));
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(180deg, var(--tc-light), var(--tc));
}

/* =========================================
   BODY BASE
   ========================================= */
body {
    background: #0a0a0c !important;
    position: relative;
    overflow-x: hidden;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

/* =========================================
   AURORA BACKGROUND
   ========================================= */
.aurora-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 0;
    overflow: hidden;
}

.aurora-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(120px);
    opacity: 0.4;
    animation: aurora-float 20s ease-in-out infinite;
}

@keyframes aurora-float {
    0%, 100% { transform: translate(0, 0) scale(1); }
    25% { transform: translate(30px, -20px) scale(1.05); }
    50% { transform: translate(-20px, 30px) scale(0.95); }
    75% { transform: translate(-30px, -10px) scale(1.02); }
}

/* =========================================
   NEON TITLE
   ========================================= */
.neon-title {
    background: linear-gradient(135deg, var(--tc-light) 0%, var(--tc) 40%, var(--tc-dark) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-shadow: 0 0 60px rgba(var(--tc-rgb), 0.3);
}

/* =========================================
   PREMIUM GLASS PANEL
   ========================================= */
.premium-glass {
    background: linear-gradient(145deg,
            rgba(18, 18, 22, 0.95) 0%,
            rgba(24, 24, 30, 0.9) 100%);
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
    border: 1px solid rgba(var(--tc-rgb), 0.08);
    border-radius: 24px;
    position: relative;
    overflow: hidden;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow:
        0 4px 24px rgba(0, 0, 0, 0.4),
        inset 0 1px 0 rgba(255, 255, 255, 0.03);
}

.premium-glass::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg,
            transparent,
            rgba(var(--tc-light-rgb), 0.5),
            rgba(var(--tc-rgb), 0.5),
            transparent);
}

.premium-glass:hover {
    border-color: rgba(var(--tc-rgb), 0.15);
    box-shadow:
        0 8px 32px rgba(0, 0, 0, 0.5),
        0 0 0 1px rgba(var(--tc-rgb), 0.05),
        inset 0 1px 0 rgba(255, 255, 255, 0.05);
}

/* =========================================
   GLOW INPUT
   ========================================= */
.glow-input {
    background: rgba(12, 12, 16, 0.9);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 16px;
    color: #fff;
    transition: all 0.3s ease;
    font-size: 15px;
}

.glow-input:focus {
    outline: none;
    border-color: rgba(var(--tc-rgb), 0.5);
    box-shadow:
        0 0 0 3px rgba(var(--tc-rgb), 0.08),
        0 0 20px rgba(var(--tc-rgb), 0.1);
    background: rgba(15, 15, 20, 1);
}

.glow-input::placeholder {
    color: rgba(255, 255, 255, 0.35);
}

/* =========================================
   PREMIUM SELECT
   ========================================= */
.premium-select {
    background: rgba(12, 12, 16, 0.9);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 14px;
    color: #fff;
    padding: 14px 18px;
    transition: all 0.3s ease;
    cursor: pointer;
    -webkit-appearance: none;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='%23FBBF24'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M19 9l-7 7-7-7'%3E%3C/path%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 14px center;
    background-size: 18px;
    padding-right: 44px;
    font-size: 15px;
    font-weight: 500;
}

.premium-select:focus {
    outline: none;
    border-color: rgba(var(--tc-rgb), 0.5);
    box-shadow: 0 0 0 3px rgba(var(--tc-rgb), 0.08);
}

.premium-select:hover {
    border-color: rgba(var(--tc-rgb), 0.3);
}

.premium-select option {
    background: #16161a;
    color: #fff;
    padding: 12px;
}

/* =========================================
   PREMIUM BUTTON
   ========================================= */
.premium-btn-primary {
    background: linear-gradient(135deg, var(--tc) 0%, var(--tc-dark) 100%);
    color: #000;
    font-weight: 700;
    border: none;
    border-radius: 16px;
    padding: 18px 36px;
    position: relative;
    overflow: hidden;
    transition: all 0.3s ease;
    box-shadow:
        0 4px 20px rgba(var(--tc-rgb), 0.35),
        0 0 0 1px rgba(var(--tc-light-rgb), 0.2);
    font-size: 16px;
    letter-spacing: 0.02em;
    cursor: pointer;
}

.premium-btn-primary::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.4), transparent);
    transition: left 0.5s ease;
}

.premium-btn-primary:hover {
    transform: translateY(-3px);
    box-shadow:
        0 8px 30px rgba(var(--tc-rgb), 0.45),
        0 0 0 1px rgba(var(--tc-light-rgb), 0.3);
}

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

.premium-btn-primary:active {
    transform: translateY(-1px);
}

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

/* =========================================
   COPY BUTTON
   ========================================= */
.copy-btn {
    background: rgba(var(--tc-rgb), 0.1);
    color: var(--tc-light);
    border: 1px solid rgba(var(--tc-rgb), 0.25);
    border-radius: 12px;
    padding: 10px 20px;
    font-size: 14px;
    font-weight: 600;
    transition: all 0.3s ease;
    cursor: pointer;
}

.copy-btn:hover {
    background: rgba(var(--tc-rgb), 0.2);
    border-color: rgba(var(--tc-rgb), 0.5);
    transform: translateY(-1px);
}

.copy-btn.copied {
    background: rgba(34, 197, 94, 0.15);
    color: #22C55E;
    border-color: rgba(34, 197, 94, 0.4);
}

/* =========================================
   UPLOAD AREA
   ========================================= */
.upload-area {
    border: 2px dashed rgba(var(--tc-rgb), 0.25);
    border-radius: 20px;
    background: rgba(12, 12, 16, 0.6);
    transition: all 0.3s ease;
    cursor: pointer;
}

.upload-area:hover {
    border-color: rgba(var(--tc-rgb), 0.5);
    background: rgba(var(--tc-rgb), 0.03);
}

.upload-area.dragover {
    border-color: var(--tc);
    background: rgba(var(--tc-rgb), 0.08);
    box-shadow: 0 0 30px rgba(var(--tc-rgb), 0.15);
}

/* =========================================
   RESULT PANEL
   ========================================= */
.result-panel {
    background: rgba(12, 12, 16, 0.95);
    border: 1px solid rgba(var(--tc-rgb), 0.15);
    border-radius: 20px;
    position: relative;
    overflow: hidden;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
}

.result-panel::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--tc-light), var(--tc), var(--tc-dark), var(--tc), var(--tc-light));
    background-size: 200% 100%;
    animation: shimmer 3s linear infinite;
}

@keyframes shimmer {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}

/* =========================================
   SECTION TITLE
   ========================================= */
.section-title {
    color: rgba(255, 255, 255, 0.5);
    font-size: 0.8rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    display: flex;
    align-items: center;
    gap: 10px;
}

.section-title i {
    color: var(--tc);
    font-size: 0.9rem;
}

/* =========================================
   INPUT LABEL
   ========================================= */
.input-label {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: 10px;
    display: block;
}

.input-label .required {
    color: var(--tc);
    margin-left: 4px;
}

/* =========================================
   BACK BUTTON
   ========================================= */
.back-btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    color: rgba(255, 255, 255, 0.5);
    text-decoration: none;
    transition: all 0.3s ease;
    font-size: 14px;
    font-weight: 500;
    padding: 8px 0;
}

.back-btn:hover {
    color: var(--tc-light);
    transform: translateX(-5px);
}

.back-btn i {
    transition: transform 0.3s ease;
}

.back-btn:hover i {
    transform: translateX(-3px);
}

/* =========================================
   TOAST
   ========================================= */
.toast {
    position: fixed;
    bottom: 28px;
    right: 28px;
    background: rgba(20, 20, 26, 0.98);
    border: 1px solid rgba(var(--tc-rgb), 0.25);
    border-radius: 16px;
    padding: 18px 28px;
    color: white;
    font-weight: 600;
    box-shadow:
        0 12px 48px rgba(0, 0, 0, 0.5),
        0 0 0 1px rgba(var(--tc-rgb), 0.1);
    transform: translateY(120px);
    opacity: 0;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 1000;
}

.toast.show {
    transform: translateY(0);
    opacity: 1;
}

/* =========================================
   MAIN CONTAINER
   ========================================= */
.main-container {
    position: relative;
    z-index: 1;
}

/* =========================================
   SUBTITLE
   ========================================= */
.subtitle {
    color: rgba(255, 255, 255, 0.45);
    font-size: 1rem;
    font-weight: 400;
}

.subtitle span {
    color: var(--tc-light);
    font-weight: 500;
}

/* =========================================
   DIVIDER
   ========================================= */
.divider {
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(var(--tc-rgb), 0.2), transparent);
    margin: 20px 0;
}