/* ==========================================================================
   TFA BRAZILIAN JIU-JITSU - DESIGN SYSTEM
   Modern, Athletic, Minimalist & Elegant Dark Theme
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap');

:root {
    /* Color Palette */
    --bg-body: #0b0c0e;
    --bg-surface: #121418;
    --bg-card: #171a21;
    --bg-card-hover: #1c2029;
    --bg-input: #1e222b;

    --border-color: rgba(255, 255, 255, 0.08);
    --border-hover: rgba(255, 255, 255, 0.18);
    --border-focus: #0070f3;

    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;

    /* TFA Accent Blue */
    --accent-blue: #0070f3;
    --accent-blue-hover: #0059c1;
    --accent-blue-glow: rgba(0, 112, 243, 0.25);

    /* Belt Colors */
    --belt-cinza: #94a3b8;
    --belt-amarela: #eab308;
    --belt-laranja: #f97316;
    --belt-verde: #22c55e;
    --belt-azul: #3b82f6;
    --belt-roxa: #a855f7;
    --belt-marrom: #854d0e;
    --belt-preta: #18181b;

    /* Layout Parameters */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --shadow-soft: 0 10px 30px -5px rgba(0, 0, 0, 0.5);
    --shadow-glow: 0 0 20px rgba(0, 112, 243, 0.15);
    --transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Global Reset & Base Styles */
*, *::before, *::after {
    box-sizing: border-box;
}

body {
    margin: 0;
    padding: 0;
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
    background-color: var(--bg-body);
    color: var(--text-primary);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Scrollbar */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}
::-webkit-scrollbar-track {
    background: var(--bg-body);
}
::-webkit-scrollbar-thumb {
    background: #2a2e39;
    border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
    background: #3b4050;
}

/* ==========================================================================
   HEADER / NAVBAR
   ========================================================================== */
.tfa-header {
    background-color: var(--bg-surface);
    border-bottom: 1px solid var(--border-color);
    padding: 1rem 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    backdrop-filter: blur(10px);
}

.tfa-header-brand {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    color: var(--text-primary);
}

.tfa-header-logo {
    height: 42px;
    width: auto;
    object-fit: contain;
    filter: drop-shadow(0 2px 8px rgba(255, 255, 255, 0.1));
}

.tfa-header-titles {
    display: flex;
    flex-direction: column;
}

.tfa-header-title {
    font-size: 1.15rem;
    font-weight: 700;
    letter-spacing: 0.5px;
    margin: 0;
    line-height: 1.2;
    text-transform: uppercase;
}

.tfa-header-subtitle {
    font-size: 0.75rem;
    color: var(--text-secondary);
    font-weight: 500;
    letter-spacing: 0.5px;
}

.tfa-header-user {
    display: flex;
    align-items: center;
    gap: 16px;
}

.tfa-user-badge {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.875rem;
    color: var(--text-secondary);
    background: var(--bg-input);
    padding: 6px 14px;
    border-radius: 20px;
    border: 1px solid var(--border-color);
}

.tfa-user-name {
    color: var(--text-primary);
    font-weight: 600;
}

.btn-tfa-logout {
    color: var(--text-secondary);
    background: transparent;
    border: 1px solid var(--border-color);
    padding: 6px 14px;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 500;
    text-decoration: none;
    transition: var(--transition);
}

.btn-tfa-logout:hover {
    color: #ef4444;
    border-color: rgba(239, 68, 68, 0.4);
    background: rgba(239, 68, 68, 0.08);
}

/* ==========================================================================
   PAGE HERO / MAIN SECTION
   ========================================================================== */
.tfa-main-container {
    flex: 1;
    padding-top: 2.5rem;
    padding-bottom: 3rem;
}

.tfa-page-title-section {
    margin-bottom: 2rem;
}

.tfa-page-title {
    font-size: 1.85rem;
    font-weight: 700;
    margin: 0 0 6px 0;
    color: var(--text-primary);
    letter-spacing: -0.5px;
}

.tfa-page-subtitle {
    font-size: 0.95rem;
    color: var(--text-secondary);
    margin: 0;
}

/* ==========================================================================
   CARDS & CONTAINERS
   ========================================================================== */
.tfa-card {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 1.75rem;
    box-shadow: var(--shadow-soft);
    transition: var(--transition);
    height: 100%;
    display: flex;
    flex-direction: column;
}

.tfa-card:hover {
    border-color: var(--border-hover);
}

.tfa-card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 1.5rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--border-color);
}

.tfa-card-title {
    font-size: 1.1rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin: 0;
    display: flex;
    align-items: center;
    gap: 10px;
}

.tfa-card-title-icon {
    width: 28px;
    height: 28px;
    border-radius: 6px;
    background: rgba(0, 112, 243, 0.12);
    color: var(--accent-blue);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.85rem;
}

.tfa-card-desc {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    line-height: 1.5;
}

/* ==========================================================================
   FORM INPUTS & CONTROLS
   ========================================================================== */
.form-group {
    margin-bottom: 1.25rem;
}

.form-label {
    display: block;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 6px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.form-control, .form-select {
    width: 100%;
    background-color: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 0.75rem 1rem;
    font-size: 0.95rem;
    color: #ffffff !important;
    -webkit-text-fill-color: #ffffff !important;
    font-family: inherit;
    transition: var(--transition);
    color-scheme: dark;
}

/* Fix Browser Autofill (Chrome/Edge/Brave) dark background & white text */
input:-webkit-autofill,
input:-webkit-autofill:hover, 
input:-webkit-autofill:focus, 
input:-webkit-autofill:active {
    -webkit-box-shadow: 0 0 0 1000px #1e222b inset !important;
    -webkit-text-fill-color: #ffffff !important;
    caret-color: #ffffff !important;
    border-color: var(--border-focus) !important;
    transition: background-color 5000s ease-in-out 0s;
}

input[type="text"],
input[type="password"],
input[type="date"] {
    color-scheme: dark;
    color: #ffffff !important;
    -webkit-text-fill-color: #ffffff !important;
}

input[type="date"]::-webkit-calendar-picker-indicator {
    filter: invert(0.8);
    cursor: pointer;
}

input[type="date"]::-webkit-datetime-edit,
input[type="date"]::-webkit-datetime-edit-fields-wrapper,
input[type="date"]::-webkit-datetime-edit-text,
input[type="date"]::-webkit-datetime-edit-month-field,
input[type="date"]::-webkit-datetime-edit-day-field,
input[type="date"]::-webkit-datetime-edit-year-field {
    color: #ffffff !important;
    -webkit-text-fill-color: #ffffff !important;
}

.form-control::placeholder {
    color: #64748b !important;
    -webkit-text-fill-color: #64748b !important;
    opacity: 1;
}

.form-control:focus, .form-select:focus {
    outline: none;
    border-color: var(--border-focus);
    box-shadow: 0 0 0 3px var(--accent-blue-glow);
    background-color: #232833;
    color: #ffffff !important;
    -webkit-text-fill-color: #ffffff !important;
}

.form-control::placeholder {
    color: var(--text-muted);
}

.form-select {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%3C94a3b8' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 1rem center;
    background-size: 1rem;
    padding-right: 2.5rem;
}

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

.form-text {
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-top: 6px;
    line-height: 1.4;
}

/* Belt Select with Color Indicator Badge */
.belt-select-wrapper {
    position: relative;
    display: flex;
    align-items: center;
}

.belt-indicator-dot {
    position: absolute;
    right: 2.5rem;
    width: 14px;
    height: 14px;
    border-radius: 50%;
    border: 1px solid rgba(255, 255, 255, 0.3);
    transition: var(--transition);
    opacity: 0;
    pointer-events: none;
}

.belt-indicator-dot.active {
    opacity: 1;
    box-shadow: 0 0 8px currentColor;
}

/* Custom File Upload Box */
.file-upload-box {
    position: relative;
    border: 2px dashed var(--border-color);
    border-radius: var(--radius-md);
    padding: 1.5rem 1rem;
    text-align: center;
    background: var(--bg-input);
    transition: var(--transition);
    cursor: pointer;
}

.file-upload-box:hover {
    border-color: var(--accent-blue);
    background: rgba(0, 112, 243, 0.05);
}

.file-upload-input {
    position: absolute;
    inset: 0;
    opacity: 0;
    width: 100%;
    height: 100%;
    cursor: pointer;
}

.file-upload-icon {
    font-size: 1.5rem;
    color: var(--accent-blue);
    margin-bottom: 8px;
}

.file-upload-text {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-primary);
}

.file-upload-subtext {
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-top: 4px;
}

/* ==========================================================================
   BUTTONS
   ========================================================================== */
.btn-tfa {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    width: 100%;
    padding: 0.85rem 1.5rem;
    font-size: 0.95rem;
    font-weight: 600;
    letter-spacing: 0.5px;
    text-transform: uppercase;
    border-radius: var(--radius-md);
    border: none;
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
}

.btn-tfa-primary {
    background-color: var(--accent-blue);
    color: #ffffff;
    box-shadow: 0 4px 14px rgba(0, 112, 243, 0.35);
}

.btn-tfa-primary:hover {
    background-color: var(--accent-blue-hover);
    box-shadow: 0 6px 20px rgba(0, 112, 243, 0.5);
    transform: translateY(-1px);
    color: #ffffff;
}

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

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

.btn-tfa-secondary:hover {
    color: var(--text-primary);
    border-color: var(--border-hover);
    background-color: rgba(255, 255, 255, 0.05);
}

/* ==========================================================================
   INSTRUCTIONS CARD & PILLS
   ========================================================================== */
.instruction-pill {
    background-color: var(--bg-input);
    border: 1px solid var(--border-color);
    color: var(--accent-blue);
    font-family: monospace;
    font-size: 0.8rem;
    padding: 2px 8px;
    border-radius: 4px;
    font-weight: 600;
}

.instruction-list {
    list-style: none;
    padding-left: 0;
    margin-bottom: 0;
}

.instruction-list li {
    position: relative;
    padding-left: 1.5rem;
    margin-bottom: 0.75rem;
    font-size: 0.875rem;
    color: var(--text-secondary);
    line-height: 1.5;
}

.instruction-list li::before {
    content: "•";
    position: absolute;
    left: 0.5rem;
    color: var(--accent-blue);
    font-weight: bold;
}

/* ==========================================================================
   LOGIN SCREEN
   ========================================================================== */
.login-body {
    background: radial-gradient(circle at top center, #171b26 0%, #0b0c0e 70%);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.login-wrapper {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem 1rem;
}

.login-box {
    width: 100%;
    max-width: 420px;
}

.login-brand {
    text-align: center;
    margin-bottom: 2rem;
}

.login-logo {
    height: 110px;
    width: auto;
    object-fit: contain;
    margin-bottom: 1.25rem;
    filter: drop-shadow(0 4px 20px rgba(0, 112, 243, 0.2));
}

.login-system-title {
    font-size: 1.5rem;
    font-weight: 800;
    letter-spacing: 1px;
    text-transform: uppercase;
    margin: 0 0 6px 0;
    color: var(--text-primary);
}

.login-system-subtitle {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin: 0;
    font-weight: 400;
}

.login-card {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 2.25rem 2rem;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.6);
}

/* Alert Message */
.tfa-alert {
    padding: 0.75rem 1rem;
    border-radius: var(--radius-md);
    font-size: 0.875rem;
    margin-bottom: 1.25rem;
    display: flex;
    align-items: center;
    gap: 10px;
}

.tfa-alert-danger {
    background-color: rgba(239, 68, 68, 0.12);
    border: 1px solid rgba(239, 68, 68, 0.3);
    color: #fca5a5;
}

/* ==========================================================================
   FOOTER
   ========================================================================== */
.tfa-footer {
    border-top: 1px solid var(--border-color);
    padding: 1.25rem 0;
    text-align: center;
    font-size: 0.8rem;
    color: var(--text-muted);
    background-color: var(--bg-surface);
}

.tfa-footer-brand {
    font-weight: 600;
    color: var(--text-secondary);
}

/* ==========================================================================
   RESPONSIVE UTILITIES
   ========================================================================== */
@media (max-width: 768px) {
    .tfa-header-title {
        font-size: 1rem;
    }
    .tfa-header-subtitle {
        display: none;
    }
    .tfa-page-title {
        font-size: 1.5rem;
    }
    .tfa-card {
        padding: 1.25rem;
    }
    .login-logo {
        height: 90px;
    }
}