/* ========================================
   Design System - Rekap BBM BIT Jakarta
   Multi-Step Form | Light/Dark Theme
   ======================================== */

/* --- CSS Variables: LIGHT MODE (default) --- */
:root {
    --primary: #2563eb;
    --primary-hover: #1d4ed8;
    --primary-light: rgba(37, 99, 235, 0.1);
    --primary-glow: rgba(37, 99, 235, 0.2);
    --accent: #0891b2;
    --accent-light: rgba(8, 145, 178, 0.1);
    --success: #16a34a;
    --success-light: rgba(22, 163, 74, 0.1);
    --danger: #dc2626;
    --danger-light: rgba(220, 38, 38, 0.08);
    --warning: #f59e0b;
    --warning-light: rgba(245, 158, 11, 0.1);

    --bg-body: #f1f5f9;
    --bg-card: rgba(255, 255, 255, 0.85);
    --bg-card-solid: #ffffff;
    --bg-input: rgba(241, 245, 249, 0.9);
    --bg-input-focus: #ffffff;

    --border-color: rgba(148, 163, 184, 0.25);
    --border-focus: var(--primary);

    --text-primary: #0f172a;
    --text-secondary: #475569;
    --text-muted: #94a3b8;

    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 20px;

    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.1);
    --shadow-glow: 0 0 40px var(--primary-glow);

    --particle-opacity: 0.06;

    --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

/* --- CSS Variables: DARK MODE --- */
[data-theme="dark"] {
    --bg-body: #0f172a;
    --bg-card: rgba(15, 23, 42, 0.75);
    --bg-card-solid: #1e293b;
    --bg-input: rgba(30, 41, 59, 0.8);
    --bg-input-focus: rgba(30, 41, 59, 1);

    --border-color: rgba(148, 163, 184, 0.15);

    --text-primary: #f1f5f9;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;

    --primary-light: rgba(37, 99, 235, 0.15);
    --primary-glow: rgba(37, 99, 235, 0.35);
    --accent: #06b6d4;
    --accent-light: rgba(6, 182, 212, 0.12);
    --success-light: rgba(22, 163, 74, 0.15);
    --danger-light: rgba(220, 38, 38, 0.12);
    --warning-light: rgba(245, 158, 11, 0.12);

    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.5);

    --particle-opacity: 0.06;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: var(--bg-body);
    color: var(--text-primary);
    min-height: 100vh;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
    transition: background var(--transition-base), color var(--transition-base);
}

/* --- Animated Background --- */
.bg-particles {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 0;
    overflow: hidden;
}

.particle {
    position: absolute;
    border-radius: 50%;
    background: var(--primary);
    opacity: var(--particle-opacity);
    animation: float-particle 20s infinite ease-in-out;
    transition: opacity var(--transition-slow);
}

.particle:nth-child(1) {
    width: 300px;
    height: 300px;
    top: -80px;
    right: -60px;
    animation-duration: 25s;
}

.particle:nth-child(2) {
    width: 200px;
    height: 200px;
    bottom: 10%;
    left: -50px;
    background: var(--accent);
    animation-delay: -5s;
    animation-duration: 20s;
}

.particle:nth-child(3) {
    width: 150px;
    height: 150px;
    top: 40%;
    right: 10%;
    background: var(--success);
    animation-delay: -10s;
    animation-duration: 22s;
}

.particle:nth-child(4) {
    width: 100px;
    height: 100px;
    bottom: 20%;
    right: 30%;
    animation-delay: -7s;
    animation-duration: 18s;
}

.particle:nth-child(5) {
    width: 250px;
    height: 250px;
    top: 20%;
    left: 5%;
    background: var(--accent);
    opacity: calc(var(--particle-opacity) * 0.7);
    animation-delay: -3s;
    animation-duration: 30s;
}

.particle:nth-child(6) {
    width: 180px;
    height: 180px;
    bottom: 5%;
    right: 5%;
    opacity: calc(var(--particle-opacity) * 0.85);
    animation-delay: -12s;
    animation-duration: 28s;
}

@keyframes float-particle {
    0%, 100% { transform: translate(0, 0) scale(1); }
    25% { transform: translate(30px, -40px) scale(1.1); }
    50% { transform: translate(-20px, 20px) scale(0.95); }
    75% { transform: translate(15px, 35px) scale(1.05); }
}

/* --- Container --- */
.container {
    position: relative;
    z-index: 1;
    max-width: 640px;
    margin: 0 auto;
    padding: 24px 16px 40px;
}

/* =============================================
   COMPANY SELECTOR
   ============================================= */
#company-selector-container {
    animation: fadeIn var(--transition-base);
}

.company-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 16px;
    margin-top: 20px;
}

.company-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 24px 20px;
    text-align: center;
    cursor: pointer;
    transition: all var(--transition-base);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    box-shadow: var(--shadow-sm);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 12px;
}

.company-card:hover {
    transform: translateY(-5px);
    border-color: var(--primary);
    box-shadow: var(--shadow-md), 0 0 15px var(--primary-glow);
    background: var(--bg-card-solid);
}

.company-card .card-icon {
    font-size: 2rem;
    color: var(--primary);
    background: var(--primary-light);
    width: 60px;
    height: 60px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-base);
}

.company-card:hover .card-icon {
    transform: scale(1.1);
    background: var(--primary);
    color: #fff;
}

.company-card h3 {
    margin: 0;
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-primary);
    line-height: 1.4;
}


/* =============================================
   THEME TOGGLE
   ============================================= */
.theme-toggle {
    position: absolute;
    top: 0;
    right: 0;
    width: 42px;
    height: 42px;
    border: 1.5px solid var(--border-color);
    border-radius: 50%;
    background: var(--bg-card);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    color: var(--text-secondary);
    font-size: 1rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-base);
    z-index: 10;
    box-shadow: var(--shadow-sm);
}

.theme-toggle:hover {
    background: var(--primary-light);
    color: var(--primary);
    border-color: var(--primary);
    transform: rotate(20deg) scale(1.08);
    box-shadow: var(--shadow-md);
}

.theme-toggle:active {
    transform: rotate(0deg) scale(0.95);
}

/* --- Brand Header --- */
.brand-header {
    text-align: center;
    padding: 28px 0 20px;
    position: relative;
    animation: slideDown 0.6s var(--transition-base);
}

.brand-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto 14px;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    border-radius: 18px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 26px;
    color: #fff;
    box-shadow: 0 8px 24px var(--primary-glow);
    animation: pulse-glow 3s infinite ease-in-out;
}

.brand-header h1 {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: -0.02em;
    margin-bottom: 4px;
}

.brand-subtitle {
    font-size: 0.85rem;
    color: var(--accent);
    font-weight: 500;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

@keyframes pulse-glow {
    0%, 100% { box-shadow: 0 8px 24px var(--primary-glow); }
    50% { box-shadow: 0 8px 40px var(--primary-glow); }
}

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

/* --- Card --- */
.card {
    background: var(--bg-card);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    padding: 28px 24px 32px;
    box-shadow: var(--shadow-lg);
    animation: slideUp 0.6s var(--transition-base) 0.1s both;
    transition: background var(--transition-base),
                border-color var(--transition-base),
                box-shadow var(--transition-base);
}

@keyframes slideUp {
    from { opacity: 0; transform: translateY(24px); }
    to { opacity: 1; transform: translateY(0); }
}

/* =============================================
   STEP INDICATOR
   ============================================= */
.step-indicator {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0;
    margin-bottom: 28px;
    padding: 0 8px;
}

.step-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
    flex-shrink: 0;
    cursor: default;
    transition: all var(--transition-base);
}

.step-number {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.82rem;
    font-weight: 700;
    background: var(--bg-input);
    color: var(--text-muted);
    border: 2px solid var(--border-color);
    transition: all var(--transition-base);
    position: relative;
}

.step-label {
    font-size: 0.68rem;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.04em;
    white-space: nowrap;
    transition: color var(--transition-base);
}

.step-line {
    flex: 1;
    height: 2px;
    background: var(--border-color);
    margin: 0 8px;
    margin-bottom: 22px;
    transition: background var(--transition-base);
    min-width: 30px;
    max-width: 60px;
}

/* Active step */
.step-item.active .step-number {
    background: var(--primary);
    color: #fff;
    border-color: var(--primary);
    box-shadow: 0 0 16px var(--primary-glow);
}

.step-item.active .step-label {
    color: var(--primary);
}

/* Completed step */
.step-item.completed .step-number {
    background: var(--success);
    color: #fff;
    border-color: var(--success);
    box-shadow: 0 0 12px rgba(22, 163, 74, 0.25);
}

.step-item.completed .step-number::after {
    content: '✓';
    position: absolute;
    font-size: 0.9rem;
}

.step-item.completed .step-number span {
    display: none;
}

.step-item.completed .step-label {
    color: var(--success);
}

.step-line.completed {
    background: var(--success);
}

/* =============================================
   FORM STEPS
   ============================================= */
.form-step {
    display: none;
    animation: fadeInStep 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.form-step.active {
    display: block;
}

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

/* Step Header */
.step-header {
    display: flex;
    align-items: center;
    gap: 14px;
    margin-bottom: 24px;
    padding-bottom: 18px;
    border-bottom: 1px solid var(--border-color);
}

.step-header-icon {
    width: 44px;
    height: 44px;
    background: var(--primary-light);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary);
    font-size: 18px;
    flex-shrink: 0;
    transition: background var(--transition-base);
}

.step-header h2 {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--text-primary);
    margin: 0;
}

.step-description {
    font-size: 0.8rem;
    color: var(--text-secondary);
    margin: 2px 0 0;
}

/* =============================================
   STEP ACTIONS (Prev/Next buttons)
   ============================================= */
.step-actions {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 24px;
    gap: 12px;
}

.btn-next,
.btn-prev {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 24px;
    font-size: 0.88rem;
    font-family: 'Inter', sans-serif;
    font-weight: 600;
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
}

.btn-next {
    background: linear-gradient(135deg, var(--primary), #3b82f6);
    color: #fff;
    box-shadow: 0 4px 16px var(--primary-glow);
    margin-left: auto;
}

.btn-next::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.15), transparent);
    transition: left 0.5s;
}

.btn-next:hover:not(:disabled)::before {
    left: 100%;
}

.btn-next:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: 0 6px 24px var(--primary-glow);
}

.btn-next:disabled {
    opacity: 0.4;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

.btn-prev {
    background: transparent;
    color: var(--text-secondary);
    border: 1px solid var(--border-color);
}

.btn-prev:hover {
    background: var(--bg-input);
    color: var(--text-primary);
    border-color: rgba(148, 163, 184, 0.3);
}

.btn-next:active,
.btn-prev:active {
    transform: translateY(0);
}

/* =============================================
   FORM GROUPS & INPUTS
   ============================================= */
.form-group {
    margin-bottom: 20px;
}

label {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 8px;
    letter-spacing: 0.01em;
}

label i {
    color: var(--primary);
    font-size: 0.9rem;
    width: 16px;
    text-align: center;
}

.required-badge {
    font-size: 0.65rem;
    font-weight: 600;
    color: var(--danger);
    background: var(--danger-light);
    padding: 2px 8px;
    border-radius: 20px;
    letter-spacing: 0.03em;
    text-transform: uppercase;
    margin-left: auto;
}

/* --- Select Wrapper --- */
.select-wrapper {
    position: relative;
}

.select-wrapper select {
    width: 100%;
    padding: 12px 40px 12px 14px;
    font-size: 0.9rem;
    font-family: 'Inter', sans-serif;
    color: var(--text-primary);
    background: var(--bg-input);
    border: 1.5px solid var(--border-color);
    border-radius: var(--radius-md);
    outline: none;
    cursor: pointer;
    appearance: none;
    -webkit-appearance: none;
    -moz-appearance: none;
    transition: all var(--transition-fast);
}

.select-wrapper select:focus {
    border-color: var(--border-focus);
    background: var(--bg-input-focus);
    box-shadow: 0 0 0 3px var(--primary-light);
}

.select-wrapper select:hover {
    border-color: rgba(148, 163, 184, 0.4);
}

.select-wrapper select option {
    background: var(--bg-card-solid);
    color: var(--text-primary);
    padding: 8px;
}

.select-wrapper select option:disabled {
    color: var(--text-muted);
}

.select-arrow {
    position: absolute;
    right: 14px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
    font-size: 0.75rem;
    pointer-events: none;
    transition: transform var(--transition-fast);
}

.select-wrapper select:focus + .select-arrow {
    color: var(--primary);
    transform: translateY(-50%) rotate(180deg);
}

/* =============================================
   SUMMARY CARD (Step 3)
   ============================================= */
.summary-card {
    background: var(--primary-light);
    border: 1px solid rgba(37, 99, 235, 0.15);
    border-radius: var(--radius-md);
    padding: 16px;
    margin-bottom: 22px;
    transition: background var(--transition-base), border-color var(--transition-base);
}

.summary-title {
    font-size: 0.78rem;
    font-weight: 700;
    color: var(--primary);
    text-transform: uppercase;
    letter-spacing: 0.04em;
    margin-bottom: 12px;
    display: flex;
    align-items: center;
    gap: 6px;
}

.summary-title i {
    font-size: 0.85rem;
}

.summary-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
}

.summary-item {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.summary-label {
    font-size: 0.7rem;
    font-weight: 500;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.03em;
}

.summary-value {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-primary);
}

/* =============================================
   FILE UPLOAD
   ============================================= */
.file-upload-area {
    position: relative;
    border: 2px dashed var(--border-color);
    border-radius: var(--radius-lg);
    padding: 28px 20px;
    text-align: center;
    cursor: pointer;
    transition: all var(--transition-base);
    background: var(--bg-input);
    overflow: hidden;
}

.file-upload-area::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--primary-light), transparent);
    opacity: 0;
    transition: opacity var(--transition-base);
}

.file-upload-area:hover,
.file-upload-area.drag-over {
    border-color: var(--primary);
    background: var(--primary-light);
}

.file-upload-area:hover::before,
.file-upload-area.drag-over::before {
    opacity: 1;
}

.file-upload-area input[type="file"] {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    cursor: pointer;
    z-index: 2;
}

.file-upload-content {
    position: relative;
    z-index: 1;
}

.file-upload-icon {
    width: 52px;
    height: 52px;
    margin: 0 auto 10px;
    background: var(--primary-light);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    color: var(--primary);
    transition: all var(--transition-base);
}

.file-upload-area:hover .file-upload-icon {
    transform: scale(1.1);
    box-shadow: 0 4px 20px var(--primary-glow);
}

.file-upload-text {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 3px;
}

.file-upload-hint {
    font-size: 0.78rem;
    color: var(--text-muted);
    margin-bottom: 8px;
}

.file-upload-formats {
    display: inline-block;
    font-size: 0.68rem;
    font-weight: 600;
    color: var(--accent);
    background: var(--accent-light);
    padding: 4px 12px;
    border-radius: 20px;
    letter-spacing: 0.05em;
}

/* File info */
.file-info {
    margin-top: 10px;
}

.file-info:empty {
    display: none;
}

.file-info-card {
    display: flex;
    align-items: center;
    gap: 12px;
    background: var(--success-light);
    border: 1px solid rgba(22, 163, 74, 0.2);
    border-radius: var(--radius-md);
    padding: 12px 14px;
    animation: fadeInUp 0.3s var(--transition-base);
}

.file-info-icon {
    width: 36px;
    height: 36px;
    background: var(--success);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 14px;
    flex-shrink: 0;
}

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

.file-info-name {
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.file-info-size {
    font-size: 0.72rem;
    color: var(--text-secondary);
}

.file-info-remove {
    width: 28px;
    height: 28px;
    border: none;
    background: var(--danger-light);
    border-radius: 50%;
    color: var(--danger);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 11px;
    transition: all var(--transition-fast);
    flex-shrink: 0;
}

.file-info-remove:hover {
    background: var(--danger);
    color: #fff;
    transform: scale(1.1);
}

.file-upload-area.has-file {
    border-color: var(--success);
    border-style: solid;
    background: var(--success-light);
}

/* =============================================
   SUBMIT BUTTON
   ============================================= */
.btn-upload {
    padding: 14px 28px;
    font-size: 0.92rem;
    font-family: 'Inter', sans-serif;
    font-weight: 700;
    color: #fff;
    background: linear-gradient(135deg, var(--success), #22c55e);
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    position: relative;
    overflow: hidden;
    transition: all var(--transition-base);
    box-shadow: 0 4px 16px rgba(22, 163, 74, 0.25);
}

.btn-upload::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s;
}

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

.btn-upload:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 24px rgba(22, 163, 74, 0.35);
}

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

.btn-upload:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

.btn-upload:disabled::before {
    display: none;
}

.btn-text, .btn-loading {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

/* =============================================
   RESULT MESSAGE
   ============================================= */
.result-message {
    margin-top: 16px;
    border-radius: var(--radius-md);
    overflow: hidden;
}

.result-message:empty {
    display: none;
}

.result-error {
    background: var(--danger-light);
    border: 1px solid rgba(220, 38, 38, 0.2);
    padding: 16px;
    display: flex;
    align-items: center;
    gap: 12px;
    color: var(--danger);
    font-weight: 600;
    font-size: 0.88rem;
    animation: fadeInUp 0.4s var(--transition-base);
}

.result-icon {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    flex-shrink: 0;
}

.result-error .result-icon {
    background: var(--danger);
    color: #fff;
}

/* =============================================
   CONDITIONAL FIELD ANIMATIONS
   ============================================= */
.form-group-enter {
    animation: slideExpand 0.35s var(--transition-base) both;
}

@keyframes slideExpand {
    from { opacity: 0; max-height: 0; margin-bottom: 0; transform: translateY(-8px); }
    to { opacity: 1; max-height: 120px; margin-bottom: 20px; transform: translateY(0); }
}

.form-group-exit {
    animation: slideCollapse 0.3s var(--transition-base) both;
}

@keyframes slideCollapse {
    from { opacity: 1; max-height: 120px; margin-bottom: 20px; }
    to { opacity: 0; max-height: 0; margin-bottom: 0; }
}

@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(12px); }
    to { opacity: 1; transform: translateY(0); }
}

/* =============================================
   FOOTER
   ============================================= */
.footer {
    text-align: center;
    padding: 24px 0 8px;
    animation: slideUp 0.6s var(--transition-base) 0.3s both;
}

.footer p {
    font-size: 0.75rem;
    color: var(--text-muted);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
}

.footer i {
    color: var(--success);
}

/* --- Webhook Status --- */
.webhook-status {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    padding: 6px 12px;
    border-radius: 20px;
    margin-bottom: 12px;
    font-size: 0.72rem;
    font-weight: 600;
    color: var(--text-secondary);
    transition: all var(--transition-base);
}

.status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    display: inline-block;
    position: relative;
}

.status-dot::after {
    content: '';
    position: absolute;
    top: -2px;
    left: -2px;
    right: -2px;
    bottom: -2px;
    border-radius: 50%;
    animation: pulse-status 1.5s infinite;
}

.status-dot.checking {
    background-color: var(--warning);
}
.status-dot.checking::after {
    background-color: var(--warning);
    opacity: 0.4;
}

.status-dot.online {
    background-color: var(--success);
}
.status-dot.online::after {
    background-color: var(--success);
    opacity: 0.4;
    animation: pulse-status 2s infinite;
}

.status-dot.offline {
    background-color: var(--danger);
}
.status-dot.offline::after {
    display: none;
}

@keyframes pulse-status {
    0% { transform: scale(0.8); opacity: 0.6; }
    100% { transform: scale(2.4); opacity: 0; }
}

/* =============================================
   RESPONSIVE
   ============================================= */
@media (max-width: 480px) {
    .container {
        padding: 16px 12px 32px;
    }

    .brand-header {
        padding: 20px 0 16px;
    }

    .brand-icon {
        width: 56px;
        height: 56px;
        font-size: 22px;
        border-radius: 14px;
    }

    .brand-header h1 {
        font-size: 1.1rem;
    }

    .card {
        padding: 22px 16px 28px;
        border-radius: var(--radius-lg);
    }

    .step-indicator {
        margin-bottom: 22px;
        padding: 0;
    }

    .step-number {
        width: 32px;
        height: 32px;
        font-size: 0.75rem;
    }

    .step-label {
        font-size: 0.6rem;
    }

    .step-line {
        min-width: 20px;
        margin: 0 4px;
        margin-bottom: 20px;
    }

    .step-header {
        gap: 10px;
        margin-bottom: 20px;
        padding-bottom: 14px;
    }

    .step-header-icon {
        width: 38px;
        height: 38px;
        font-size: 16px;
    }

    .step-header h2 {
        font-size: 1rem;
    }

    .summary-grid {
        grid-template-columns: 1fr;
        gap: 8px;
    }

    .file-upload-area {
        padding: 22px 14px;
    }

    .file-upload-icon {
        width: 44px;
        height: 44px;
        font-size: 18px;
    }

    .step-actions {
        gap: 8px;
    }

    .btn-next, .btn-prev {
        padding: 10px 18px;
        font-size: 0.82rem;
    }

    .theme-toggle {
        width: 36px;
        height: 36px;
        font-size: 0.85rem;
    }
}

/* --- Focus visible for accessibility --- */
select:focus-visible,
input:focus-visible,
button:focus-visible {
    outline: 2px solid var(--primary);
    outline-offset: 2px;
}

/* =============================================
   SELECT2 CUSTOM PREMIUM STYLING
   ============================================= */
.select2-container--default .select2-selection--single {
    background-color: var(--bg-input);
    border: 1.5px solid var(--border-color);
    border-radius: var(--radius-md);
    height: 48px;
    display: flex;
    align-items: center;
    transition: all var(--transition-fast);
}

.select2-container--default.select2-container--focus .select2-selection--single,
.select2-container--default.select2-container--open .select2-selection--single {
    border-color: var(--border-focus);
    background-color: var(--bg-input-focus);
    box-shadow: 0 0 0 3px var(--primary-light);
}

.select2-container--default .select2-selection--single .select2-selection__rendered {
    color: var(--text-primary);
    font-size: 0.9rem;
    font-family: 'Inter', sans-serif;
    padding-left: 14px;
    padding-right: 40px;
    line-height: normal;
}

.select2-container--default .select2-selection--single .select2-selection__placeholder {
    color: var(--text-muted);
}

.select2-container--default .select2-selection--single .select2-selection__arrow {
    height: 46px;
    right: 8px;
    transition: transform var(--transition-fast);
}

.select2-container--default.select2-container--open .select2-selection--single .select2-selection__arrow {
    transform: rotate(180deg);
}

.select2-container--default .select2-selection--single .select2-selection__arrow b {
    border-color: var(--text-muted) transparent transparent transparent;
}

.select2-container--default.select2-container--open .select2-selection--single .select2-selection__arrow b {
    border-color: transparent transparent var(--text-muted) transparent;
}

.select2-dropdown {
    background-color: var(--bg-card-solid);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    box-shadow: var(--shadow-lg);
    z-index: 1050;
    overflow: hidden;
}

.select2-search--dropdown {
    padding: 10px;
}

.select2-search--dropdown .select2-search__field {
    background-color: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    padding: 8px 12px;
    font-family: 'Inter', sans-serif;
    font-size: 0.85rem;
}

.select2-search--dropdown .select2-search__field:focus {
    border-color: var(--primary);
    outline: none;
    box-shadow: 0 0 0 2px var(--primary-light);
}

.select2-results__options {
    max-height: 250px;
    overflow-y: auto;
}

.select2-results__option {
    padding: 10px 14px;
    font-size: 0.85rem;
    font-family: 'Inter', sans-serif;
    color: var(--text-primary);
    transition: background-color 0.15s ease;
}

.select2-container--default .select2-results__option--highlighted[aria-selected],
.select2-container--default .select2-results__option--highlighted.select2-results__option--selectable {
    background-color: var(--primary-light);
    color: var(--primary);
    font-weight: 500;
}

.select2-container--default .select2-results__option[aria-selected="true"] {
    background-color: var(--primary);
    color: #ffffff;
    font-weight: 500;
}

.select2-container--default .select2-selection--single .select2-selection__clear {
    margin-right: 14px;
    color: var(--danger);
    font-size: 1.2rem;
    font-weight: bold;
}

/* =============================================
   CUSTOM ADMIN MODAL
   ============================================= */
.custom-modal {
    display: none;
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(0,0,0,0.5);
    z-index: 1050;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(5px);
    opacity: 0;
    transition: opacity 0.3s ease;
}
.custom-modal.show {
    display: flex;
    opacity: 1;
}
.custom-modal .modal-dialog {
    background: var(--bg-card);
    border-radius: var(--radius-xl);
    width: 100%;
    max-width: 500px;
    padding: 24px;
    box-shadow: var(--shadow-xl);
    transform: translateY(-30px);
    transition: transform 0.3s ease;
    border: 1px solid var(--border-color);
}
.custom-modal.show .modal-dialog {
    transform: translateY(0);
}
.custom-modal .modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}
.custom-modal .modal-title {
    margin: 0;
    font-size: 1.2rem;
    font-weight: 600;
}
.custom-modal .btn-close {
    background: transparent;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--text-muted);
}
.custom-modal .modal-footer {
    display: flex;
    justify-content: flex-end;
    gap: 10px;
    margin-top: 20px;
}