/* ============================================================
   Register Page Styles - BarAssistCalc
   ============================================================ */

/* -------------------------
   CSS Variables
   ------------------------- */
:root {
    --register-ink: #e8edf6;
    --register-muted: #9ca6ba;
    --register-panel: rgba(8, 15, 29, 0.82);
    --register-border: rgba(120, 141, 176, 0.38);
    --register-accent: #22c55e;
    --register-accent-alt: #0ea5e9;
    --register-accent-hover: #16a34a;
    --register-error: #ef4444;
    --register-error-bg: rgba(127, 29, 29, 0.62);
    --register-success: #22c55e;
    --register-success-bg: rgba(34, 197, 94, 0.22);
    --register-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.45);
    --register-radius: 1.35rem;
    --register-input-radius: 0.9rem;
}

/* -------------------------
   Page Layout
   ------------------------- */
.register-page {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: stretch;
    color: var(--register-ink);
}

.register-bg {
    position: fixed;
    inset: 0;
    z-index: -1;
    background:
        linear-gradient(184deg, rgba(5, 12, 24, 0.88), rgba(8, 21, 42, 0.92)),
        radial-gradient(780px 380px at 18% 20%, rgba(34, 197, 94, 0.16), transparent 60%),
        radial-gradient(640px 280px at 85% 15%, rgba(14, 165, 233, 0.18), transparent 70%),
        var(--bg-img, url("/assets/background.jpg")) center / cover no-repeat fixed;
    filter: saturate(120%);
}

.register-content {
    position: relative;
    z-index: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    padding-top: 2rem;
    padding-bottom: 2rem;
}

/* -------------------------
   Card Styles
   ------------------------- */
.register-card {
    background: var(--register-panel);
    border: 1px solid var(--register-border);
    border-radius: var(--register-radius);
    backdrop-filter: blur(18px) saturate(140%);
    box-shadow: var(--register-shadow);
}

/* -------------------------
   Header Styles
   ------------------------- */
.register-brand-link {
    display: inline-block;
    text-decoration: none;
}

.register-logo {
    width: 64px;
    height: 64px;
    border-radius: 16px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
    transition: transform 0.3s ease;
}

.register-logo:hover {
    transform: scale(1.05);
}

.register-brand {
    display: inline-block;
    background: linear-gradient(135deg, var(--register-accent), var(--register-accent-alt));
    color: #fff;
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.05em;
    padding: 0.35rem 0.85rem;
}

.register-title {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--register-ink);
    margin-bottom: 0.5rem;
}

.register-subtitle {
    font-size: 0.9rem;
    color: var(--register-muted);
    line-height: 1.5;
    max-width: 400px;
    margin-left: auto;
    margin-right: auto;
}

/* -------------------------
   Section Styles
   ------------------------- */
.register-section {
    margin-bottom: 1.75rem;
    padding-bottom: 1.5rem;
    border-bottom: 1px solid rgba(120, 141, 176, 0.18);
}

.register-section:last-of-type {
    border-bottom: none;
    margin-bottom: 1rem;
    padding-bottom: 0;
}

.register-section-title {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1rem;
    font-weight: 600;
    color: var(--register-ink);
    margin-bottom: 1.25rem;
}

.register-section-title i {
    font-size: 1.1rem;
    color: var(--register-accent);
}

.optional-badge {
    font-size: 0.7rem;
    font-weight: 500;
    color: var(--register-muted);
    background: rgba(148, 163, 184, 0.15);
    padding: 0.2rem 0.5rem;
    border-radius: 0.5rem;
    margin-left: auto;
}

/* -------------------------
   Grid Layout (12-column)
   ------------------------- */
.register-grid {
    display: grid;
    grid-template-columns: repeat(12, minmax(0, 1fr));
    gap: 1rem 1.25rem;
}

.register-field.span-12 {
    grid-column: span 12;
}

.register-field.span-6 {
    grid-column: span 6;
}

.register-field.span-4 {
    grid-column: span 4;
}

@media (max-width: 768px) {
    .register-grid {
        grid-template-columns: repeat(6, minmax(0, 1fr));
    }

    .register-field.span-12,
    .register-field.span-6,
    .register-field.span-4 {
        grid-column: span 6;
    }
}

@media (max-width: 480px) {
    .register-grid {
        grid-template-columns: 1fr;
    }

    .register-field.span-12,
    .register-field.span-6,
    .register-field.span-4 {
        grid-column: span 1;
    }
}

/* -------------------------
   Form Field Styles
   ------------------------- */
.register-field {
    display: flex;
    flex-direction: column;
}

.register-field .form-label {
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--register-ink);
    margin-bottom: 0.4rem;
}

.required-mark {
    color: var(--register-error);
    font-weight: 600;
}

/* Input Icon Wrapper */
.input-icon-wrapper {
    position: relative;
    display: flex;
    align-items: center;
}

.input-icon {
    position: absolute;
    left: 1rem;
    color: var(--register-muted);
    font-size: 1rem;
    pointer-events: none;
    z-index: 2;
}

.register-card .form-control {
    background: rgba(5, 12, 24, 0.72);
    border: 1px solid rgba(120, 141, 176, 0.45);
    color: var(--register-ink);
    padding: 0.8rem 1rem;
    border-radius: var(--register-input-radius);
    font-size: 0.95rem;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.register-card .form-control.has-icon {
    padding-left: 2.75rem;
}

.register-card .form-control::placeholder {
    color: rgba(148, 163, 184, 0.6);
}

.register-card .form-control:focus {
    outline: none;
    border-color: rgba(34, 197, 94, 0.65);
    box-shadow: 0 0 0 0.2rem rgba(34, 197, 94, 0.18);
    background: rgba(5, 12, 24, 0.85);
}

.register-card .form-control.is-invalid {
    border-color: rgba(239, 68, 68, 0.65);
    box-shadow: 0 0 0 0.2rem rgba(239, 68, 68, 0.18);
}

/* Select Dropdown */
.register-card select.form-control {
    appearance: none;
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3e%3cpath fill='none' stroke='%239ca6ba' stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='m2 5 6 6 6-6'/%3e%3c/svg%3e");
    background-repeat: no-repeat;
    background-position: right 1rem center;
    background-size: 12px;
    padding-right: 2.5rem;
}

/* Password Toggle */
.password-toggle {
    position: absolute;
    right: 0.5rem;
    top: 50%;
    transform: translateY(-50%);
    padding: 0.25rem 0.5rem;
    color: var(--register-muted);
    background: transparent;
    border: none;
    cursor: pointer;
    z-index: 2;
    transition: color 0.2s ease;
}

.password-toggle:hover {
    color: var(--register-ink);
}

.password-toggle:focus {
    outline: none;
    box-shadow: none;
}

/* Hint Text */
.register-hint {
    display: block;
    font-size: 0.75rem;
    color: var(--register-muted);
    margin-top: 0.4rem;
    line-height: 1.4;
}

/* Validation Feedback */
.invalid-feedback {
    display: none;
    font-size: 0.8rem;
    color: #fca5a5;
    margin-top: 0.35rem;
}

.invalid-feedback.show {
    display: block;
}

/* -------------------------
   Terms Checkbox
   ------------------------- */
.register-terms {
    margin-bottom: 1.5rem;
}

.register-terms .form-check {
    padding-left: 1.75rem;
}

.register-terms .form-check-input {
    width: 1.1rem;
    height: 1.1rem;
    margin-left: -1.75rem;
    margin-top: 0.15rem;
    background-color: rgba(5, 12, 24, 0.72);
    border: 1px solid rgba(120, 141, 176, 0.45);
    border-radius: 0.35rem;
    cursor: pointer;
    transition: all 0.2s ease;
}

.register-terms .form-check-input:checked {
    background-color: var(--register-accent);
    border-color: var(--register-accent);
}

.register-terms .form-check-input:focus {
    box-shadow: 0 0 0 0.2rem rgba(34, 197, 94, 0.25);
}

.register-terms .form-check-label {
    font-size: 0.85rem;
    color: var(--register-muted);
    cursor: pointer;
}

.register-terms .form-check-label a {
    color: var(--register-accent);
    text-decoration: none;
    transition: color 0.2s ease;
}

.register-terms .form-check-label a:hover {
    color: var(--register-accent-alt);
    text-decoration: underline;
}

/* -------------------------
   Submit Button
   ------------------------- */
.register-submit {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    background: linear-gradient(135deg, var(--register-accent), var(--register-accent-alt));
    border: none;
    border-radius: var(--register-input-radius);
    font-weight: 600;
    font-size: 1rem;
    padding: 0.95rem 1.5rem;
    color: #fff;
    cursor: pointer;
    transition: transform 0.2s ease, box-shadow 0.2s ease, filter 0.2s ease;
}

.register-submit:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(34, 197, 94, 0.35);
    filter: brightness(1.05);
}

.register-submit:active:not(:disabled) {
    transform: translateY(0);
}

.register-submit:disabled {
    opacity: 0.7;
    cursor: not-allowed;
}

/* -------------------------
   Alert Messages
   ------------------------- */
.register-alert {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    border-radius: 1rem;
    padding: 1rem 1.25rem;
    backdrop-filter: blur(12px) saturate(140%);
    border: 1px solid transparent;
}

.register-alert i {
    font-size: 1.25rem;
    flex-shrink: 0;
    margin-top: 0.1rem;
}

.register-alert strong {
    display: block;
    font-size: 0.95rem;
}

.register-alert p {
    font-size: 0.85rem;
    opacity: 0.9;
}

.register-alert-error {
    background: var(--register-error-bg);
    border-color: rgba(248, 113, 113, 0.32);
    color: #fee2e2;
}

.register-alert-error i {
    color: #f87171;
}

.register-alert-success {
    background: var(--register-success-bg);
    border-color: rgba(74, 222, 128, 0.32);
    color: #dcfce7;
}

.register-alert-success i {
    color: #4ade80;
}

/* -------------------------
   Footer Links
   ------------------------- */
.register-footer {
    text-align: center;
}

.register-footer-text {
    font-size: 0.9rem;
    color: var(--register-muted);
    margin-bottom: 1rem;
}

.register-link {
    color: var(--register-accent);
    font-weight: 600;
    text-decoration: none;
    transition: color 0.2s ease;
}

.register-link:hover {
    color: var(--register-accent-alt);
    text-decoration: underline;
}

.register-divider {
    position: relative;
    text-align: center;
    margin: 1.25rem 0;
}

.register-divider::before {
    content: "";
    position: absolute;
    top: 50%;
    left: 0;
    right: 0;
    height: 1px;
    background: rgba(120, 141, 176, 0.25);
}

.register-divider span {
    position: relative;
    background: var(--register-panel);
    padding: 0 1rem;
    font-size: 0.8rem;
    color: var(--register-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.register-demo {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    border-color: rgba(120, 141, 176, 0.45);
    color: var(--register-muted);
    border-radius: var(--register-input-radius);
    padding: 0.8rem 1.5rem;
    font-weight: 500;
    transition: all 0.2s ease;
}

.register-demo:hover {
    background: rgba(34, 197, 94, 0.1);
    border-color: var(--register-accent);
    color: var(--register-accent);
}

/* -------------------------
   Responsive Adjustments
   ------------------------- */
@media (max-width: 576px) {
    .register-card .card-body {
        padding: 1.5rem !important;
    }

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

    .register-subtitle {
        font-size: 0.85rem;
    }

    .register-logo {
        width: 56px;
        height: 56px;
    }
}

/* -------------------------
   Animations
   ------------------------- */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.register-alert:not(.d-none) {
    animation: fadeIn 0.3s ease-out;
}

/* Shake animation for errors */
@keyframes shake {
    0%, 100% { transform: translateX(0); }
    10%, 30%, 50%, 70%, 90% { transform: translateX(-4px); }
    20%, 40%, 60%, 80% { transform: translateX(4px); }
}

.form-control.is-invalid {
    animation: shake 0.4s ease-out;
}