/* ============================================================
   BSF COMPONENTS — Reusable UI elements
   ============================================================ */

/* --- Buttons --- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    padding: 14px 32px;
    font-family: var(--font-heading);
    font-size: var(--fs-small);
    font-weight: var(--fw-semibold);
    letter-spacing: var(--ls-wide);
    text-transform: uppercase;
    border-radius: var(--radius-sm);
    transition: all var(--duration-normal) var(--ease-out);
    position: relative;
    overflow: hidden;
    white-space: nowrap;
    cursor: pointer;
}

.btn::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(255,255,255,0.1), transparent);
    opacity: 0;
    transition: opacity var(--duration-fast) var(--ease-out);
}

.btn:hover::before {
    opacity: 1;
}

.btn-primary {
    background: linear-gradient(135deg, var(--color-gold), var(--color-gold-dark));
    color: var(--color-bg-primary);
    box-shadow: var(--shadow-gold);
}

.btn-primary:hover {
    background: linear-gradient(135deg, var(--color-gold-light), var(--color-gold));
    box-shadow: var(--shadow-gold-lg);
    transform: translateY(-2px);
    color: var(--color-bg-primary);
}

.btn-secondary {
    background: transparent;
    color: var(--color-white);
    border: 1px solid var(--color-white-30);
}

.btn-secondary:hover {
    border-color: var(--color-gold);
    color: var(--color-gold);
    background: var(--color-gold-muted);
    transform: translateY(-2px);
}

.btn-outline-gold {
    background: transparent;
    color: var(--color-gold);
    border: 1px solid var(--color-gold);
}

.btn-outline-gold:hover {
    background: var(--color-gold);
    color: var(--color-bg-primary);
    box-shadow: var(--shadow-gold);
    transform: translateY(-2px);
}

.btn-lg {
    padding: 18px 42px;
    font-size: var(--fs-body);
}

.btn-sm {
    padding: 10px 20px;
    font-size: var(--fs-xs);
}

.btn-icon {
    width: 48px;
    height: 48px;
    padding: 0;
    border-radius: var(--radius-full);
    font-size: 1.25rem;
}

.btn-group {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-md);
}

/* --- Glass Card --- */
.glass-card {
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
    padding: var(--space-2xl);
    transition: all var(--duration-normal) var(--ease-out);
    position: relative;
    overflow: hidden;
}

.glass-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--color-white-10), transparent);
}

.glass-card:hover {
    background: var(--glass-bg-hover);
    border-color: var(--glass-border-hover);
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.glass-card--gold:hover {
    border-color: var(--color-gold);
    box-shadow: var(--shadow-gold);
}

/* --- Service Card --- */
.service-card {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
    padding: var(--space-2xl);
    text-align: center;
    transition: all var(--duration-normal) var(--ease-out);
    position: relative;
    overflow: hidden;
}

.service-card::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--color-gold), var(--color-gold-light));
    transform: scaleX(0);
    transition: transform var(--duration-normal) var(--ease-out);
}

.service-card:hover {
    background: var(--glass-bg-hover);
    border-color: var(--glass-border-hover);
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
}

.service-card:hover::after {
    transform: scaleX(1);
}

.service-card__icon {
    width: 72px;
    height: 72px;
    border-radius: var(--radius-md);
    background: var(--color-gold-muted);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--space-lg);
    font-size: 1.75rem;
    color: var(--color-gold);
    transition: all var(--duration-normal) var(--ease-out);
}

.service-card:hover .service-card__icon {
    background: var(--color-gold);
    color: var(--color-bg-primary);
    transform: scale(1.1);
}

.service-card__title {
    font-size: var(--fs-h4);
    margin-bottom: var(--space-sm);
}

.service-card__desc {
    font-size: var(--fs-small);
    color: var(--color-white-50);
    line-height: var(--lh-relaxed);
}

/* --- Stats Card --- */
.stat-card {
    text-align: center;
    padding: var(--space-xl);
}

.stat-card__number {
    font-family: var(--font-heading);
    font-size: var(--fs-h1);
    font-weight: var(--fw-extrabold);
    color: var(--color-gold);
    line-height: 1;
    margin-bottom: var(--space-xs);
}

.stat-card__label {
    font-size: var(--fs-small);
    color: var(--color-white-50);
    text-transform: uppercase;
    letter-spacing: var(--ls-wider);
    font-weight: var(--fw-medium);
}

/* --- Feature Card (Why Choose Us) --- */
.feature-card {
    display: flex;
    align-items: flex-start;
    gap: var(--space-lg);
    padding: var(--space-xl);
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
    transition: all var(--duration-normal) var(--ease-out);
}

.feature-card:hover {
    border-color: var(--glass-border-hover);
    background: var(--glass-bg-hover);
    transform: translateX(8px);
}

.feature-card__icon {
    width: 56px;
    height: 56px;
    min-width: 56px;
    border-radius: var(--radius-sm);
    background: var(--color-gold-muted);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: var(--color-gold);
}

.feature-card__title {
    font-size: var(--fs-h4);
    margin-bottom: var(--space-xs);
}

.feature-card__desc {
    font-size: var(--fs-small);
    color: var(--color-white-50);
}

/* --- Industry Card --- */
.industry-card {
    position: relative;
    height: 280px;
    border-radius: var(--radius-md);
    overflow: hidden;
    cursor: pointer;
    border: 1px solid var(--glass-border);
}

.industry-card__bg {
    position: absolute;
    inset: 0;
    background-size: cover;
    background-position: center;
    transition: transform var(--duration-slow) var(--ease-out);
}

.industry-card__overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, transparent 30%, rgba(5,5,5,0.9) 100%);
    transition: background var(--duration-normal) var(--ease-out);
}

.industry-card:hover .industry-card__bg {
    transform: scale(1.1);
}

.industry-card:hover .industry-card__overlay {
    background: linear-gradient(180deg, rgba(201,168,76,0.1) 0%, rgba(5,5,5,0.95) 100%);
}

.industry-card__content {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: var(--space-xl);
    z-index: 2;
}

.industry-card__title {
    font-size: var(--fs-h4);
    margin-bottom: var(--space-xs);
}

.industry-card__desc {
    font-size: var(--fs-small);
    color: var(--color-white-50);
    opacity: 0;
    transform: translateY(10px);
    transition: all var(--duration-normal) var(--ease-out);
}

.industry-card:hover .industry-card__desc {
    opacity: 1;
    transform: translateY(0);
}

/* --- FAQ Accordion --- */
.faq-item {
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
    margin-bottom: var(--space-md);
    overflow: hidden;
    transition: border-color var(--duration-fast) var(--ease-out);
}

.faq-item.active {
    border-color: var(--color-gold-muted);
}

.faq-question {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-lg) var(--space-xl);
    cursor: pointer;
    font-family: var(--font-heading);
    font-size: var(--fs-body-lg);
    font-weight: var(--fw-semibold);
    color: var(--color-white);
    background: var(--glass-bg);
    transition: all var(--duration-fast) var(--ease-out);
    width: 100%;
    text-align: left;
}

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

.faq-question__icon {
    font-size: 1.25rem;
    color: var(--color-gold);
    transition: transform var(--duration-normal) var(--ease-out);
    min-width: 24px;
    text-align: center;
}

.faq-item.active .faq-question__icon {
    transform: rotate(45deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--duration-normal) var(--ease-out);
}

.faq-answer__inner {
    padding: 0 var(--space-xl) var(--space-xl);
    color: var(--color-white-70);
    line-height: var(--lh-relaxed);
}

/* --- Form Elements --- */
.form-group {
    margin-bottom: var(--space-lg);
}

.form-label {
    display: block;
    font-size: var(--fs-small);
    font-weight: var(--fw-medium);
    color: var(--color-white-70);
    margin-bottom: var(--space-sm);
    letter-spacing: var(--ls-wide);
}

.form-label--required::after {
    content: ' *';
    color: var(--color-gold);
}

.form-input,
.form-select,
.form-textarea {
    width: 100%;
    padding: 14px 18px;
    background: var(--color-bg-tertiary);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-sm);
    color: var(--color-white);
    font-size: var(--fs-body);
    transition: all var(--duration-fast) var(--ease-out);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
    border-color: var(--color-gold);
    box-shadow: 0 0 0 3px var(--color-gold-muted);
    background: var(--color-bg-card);
}

.form-input::placeholder {
    color: var(--color-white-30);
}

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

.form-select {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath d='M6 8L1 3h10z' fill='%23c9a84c'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 16px center;
    padding-right: 40px;
    cursor: pointer;
}

.form-select option {
    background: var(--color-bg-card);
    color: var(--color-white);
}

.form-checkbox {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    cursor: pointer;
}

.form-checkbox input[type="checkbox"] {
    width: 20px;
    height: 20px;
    accent-color: var(--color-gold);
    cursor: pointer;
}

.form-error {
    color: var(--color-danger);
    font-size: var(--fs-xs);
    margin-top: var(--space-xs);
}

.form-help {
    color: var(--color-white-30);
    font-size: var(--fs-xs);
    margin-top: var(--space-xs);
}

/* Form grid */
.form-row {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-lg);
}

.form-row--3 {
    grid-template-columns: repeat(3, 1fr);
}

@media (max-width: 640px) {
    .form-row,
    .form-row--3 {
        grid-template-columns: 1fr;
    }
}

/* --- Badge --- */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 4px 12px;
    font-size: var(--fs-xs);
    font-weight: var(--fw-semibold);
    border-radius: var(--radius-full);
    text-transform: uppercase;
    letter-spacing: var(--ls-wide);
}

.badge--pending { background: rgba(245, 158, 11, 0.15); color: var(--color-warning); }
.badge--active { background: rgba(34, 197, 94, 0.15); color: var(--color-success); }
.badge--new { background: rgba(59, 130, 246, 0.15); color: var(--color-info); }
.badge--rejected { background: rgba(239, 68, 68, 0.15); color: var(--color-danger); }
.badge--hired { background: rgba(201, 168, 76, 0.15); color: var(--color-gold); }

/* --- Contact Cards --- */
.contact-card {
    display: flex;
    align-items: center;
    gap: var(--space-lg);
    padding: var(--space-xl);
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
    transition: all var(--duration-normal) var(--ease-out);
    text-decoration: none;
}

.contact-card:hover {
    border-color: var(--color-gold);
    background: var(--glass-bg-hover);
    transform: translateY(-4px);
    box-shadow: var(--shadow-gold);
}

.contact-card__icon {
    width: 64px;
    height: 64px;
    min-width: 64px;
    border-radius: var(--radius-md);
    background: var(--color-gold-muted);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.75rem;
    color: var(--color-gold);
}

.contact-card__label {
    font-size: var(--fs-small);
    color: var(--color-white-50);
    margin-bottom: 2px;
}

.contact-card__value {
    font-family: var(--font-heading);
    font-size: var(--fs-h4);
    color: var(--color-white);
    font-weight: var(--fw-semibold);
}

/* --- Toast / Notification --- */
.toast {
    position: fixed;
    bottom: 24px;
    right: 24px;
    padding: var(--space-md) var(--space-xl);
    background: var(--color-bg-card);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
    color: var(--color-white);
    font-weight: var(--fw-medium);
    box-shadow: var(--shadow-xl);
    z-index: var(--z-toast);
    transform: translateY(120%);
    transition: transform var(--duration-normal) var(--ease-spring);
}

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

.toast--success { border-left: 4px solid var(--color-success); }
.toast--error { border-left: 4px solid var(--color-danger); }
.toast--info { border-left: 4px solid var(--color-info); }

/* --- Divider --- */
.divider {
    width: 100%;
    height: 1px;
    background: var(--glass-border);
    margin: var(--space-3xl) 0;
}

/* --- Back to Top --- */
.back-to-top {
    position: fixed;
    bottom: 32px;
    right: 32px;
    width: 48px;
    height: 48px;
    border-radius: var(--radius-full);
    background: var(--color-gold);
    color: var(--color-bg-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    cursor: pointer;
    z-index: var(--z-fixed);
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: all var(--duration-normal) var(--ease-out);
    box-shadow: var(--shadow-gold);
    border: none;
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.back-to-top:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-gold-lg);
}

/* --- Loading Spinner --- */
.spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--color-white-10);
    border-top-color: var(--color-gold);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

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

/* --- Empty State --- */
.empty-state {
    text-align: center;
    padding: var(--space-4xl) var(--space-xl);
}

.empty-state__icon {
    font-size: 4rem;
    margin-bottom: var(--space-lg);
    opacity: 0.3;
}

.empty-state__title {
    font-size: var(--fs-h3);
    margin-bottom: var(--space-sm);
}

.empty-state__desc {
    color: var(--color-white-50);
}