/* TEENFIT - Authentication Styles */

/* Design Palette */
:root {
    --color-primary: #55C3ED;    /* brand primary */
    --color-secondary: #DD3635;  /* brand secondary */
    --color-text: #7A7A7A;       /* base text */
    --color-accent: #61CE70;     /* accent */
    --input-radius: 12px;        /* unified input border radius */
}

.bg-gradient-primary {
    background: linear-gradient(180deg, rgba(85,195,237,0.2) 0%, rgba(85,195,237,0.05) 100%);
    background-attachment: fixed;
    min-height: 100vh;
    display: flex;
    align-items: center;
}

.bg-login-image {
    background-image: url('/images/young-people_1280.jpg');
    background-size: cover;
    background-position: center;
    position: relative;
    overflow: hidden;
}

.bg-login-image::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.2);
    z-index: 1;
}

.login-image-content {
    position: relative;
    z-index: 2;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* Login right column hero image (no gaps) */
.login-right-col {
    padding-left: 0 !important;
    padding-right: 0 !important;
    line-height: normal; /* ensure text renders correctly */
}

.auth-hero-img {
    width: 100%;
    height: auto;
    display: block;
    margin: 0 0 1rem 0; /* add space between image and form */
    border-top-right-radius: 1rem; /* match card corner to avoid white corner */
    max-height: 200px; /* prevent oversized image pushing form down */
    object-fit: contain; /* keep proportions within max height */
}

/* Match left image area with card rounding */
.bg-login-image {
    border-top-left-radius: 1rem;
    border-bottom-left-radius: 1rem; /* ensure bottom-left corner is rounded */
}

/* Reduce form padding to avoid cramped layout */
.login-right-col .p-5 {
    padding: 2rem !important;
    padding-top: 1.5rem !important;
}

/* Flex stack for right column content with responsive spacing */
.login-stack {
    display: flex;
    flex-direction: column;
    row-gap: clamp(0.5rem, 2.5vh, 1.25rem);
}

@media (min-width: 1200px) {
    .auth-hero-img { max-height: 220px; }
}

@media (max-width: 991.98px) {
    .auth-hero-img { max-height: 150px; border-top-left-radius: 1rem; }
}

.feature-list {
    text-align: left;
}

.feature-item {
    font-size: 1.1rem;
    opacity: 0.9;
}

.card {
    border-radius: 1rem;
    box-shadow: 0 0.5rem 1rem rgba(0, 0, 0, 0.15);
    overflow: hidden; /* clip inner columns to the card radius on all sizes */
}

.form-control-user {
    font-size: 0.9rem;
    border-radius: var(--input-radius);
    padding: 1.5rem 1rem;
    border: 1px solid #d1d3e2;
    background-color: #fff;
    transition: all 0.3s ease;
}

.form-control-user:focus {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 0.2rem rgba(85, 195, 237, 0.25);
    background-color: #fff;
}

.btn-user {
    font-size: 0.9rem;
    border-radius: 2rem;
    padding: 0.9rem 1.5rem; /* unified vertical padding */
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1rem;
    transition: all 0.3s ease;
}

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

.btn-primary:hover {
    background-color: #3bb2e3; /* slightly darker than primary */
    border-color: #3bb2e3;
    transform: translateY(-1px);
    box-shadow: 0 0.5rem 1rem rgba(0, 0, 0, 0.15);
}

.btn-outline-secondary {
    border-color: var(--color-secondary);
    color: var(--color-secondary);
}

.btn-outline-secondary:hover {
    background-color: var(--color-secondary);
    border-color: var(--color-secondary);
    color: #fff;
}

.btn-outline-primary {
    border-color: var(--color-primary);
    color: var(--color-primary);
}

.btn-outline-primary:hover {
    background-color: var(--color-primary);
    border-color: var(--color-primary);
    color: #fff;
}


.text-gray-900 {
    color: var(--color-text) !important;
}

.text-gray-600 {
    color: #6e707e !important;
}

.alert {
    border-radius: 0.5rem;
    border: none;
    font-weight: 500;
}

.alert-danger {
    background: linear-gradient(135deg, #f8d7da 0%, #f5c6cb 100%);
    color: var(--color-secondary);
}

.alert-success {
    background: linear-gradient(135deg, #d4edda 0%, #c3e6cb 100%);
    color: #155724;
}

.alert-warning {
    background: linear-gradient(135deg, #fff3cd 0%, #ffeaa7 100%);
    color: #856404;
}

.input-group .btn {
    border-radius: 0 var(--input-radius) var(--input-radius) 0;
    border-color: var(--color-primary);
}

.input-group .form-control {
    border-radius: var(--input-radius) 0 0 var(--input-radius);
}

.password-strength .progress {
    height: 4px;
    border-radius: 2px;
    background-color: #e9ecef;
}

.password-strength .progress-bar {
    border-radius: 2px;
    transition: all 0.3s ease;
}

.form-text {
    font-size: 0.8rem;
    color: #6e707e;
    margin-top: 0.5rem;
}

.invalid-feedback {
    font-size: 0.8rem;
    color: #e74a3b;
    margin-top: 0.25rem;
}

/* Language Selector */
.btn-group .btn {
    border-radius: 0.25rem;
    font-size: 0.8rem;
    padding: 0.375rem 0.75rem;
}

.btn-group .btn:first-child {
    border-top-right-radius: 0;
    border-bottom-right-radius: 0;
}

.btn-group .btn:last-child {
    border-top-left-radius: 0;
    border-bottom-left-radius: 0;
}

.btn-group .btn:not(:first-child):not(:last-child) {
    border-radius: 0;
}

.btn-group .btn.active {
    background-color: var(--color-secondary);
    border-color: var(--color-secondary);
    color: white;
}

/* Mobile Responsiveness */
@media (max-width: 768px) {
    .bg-gradient-primary { padding: 1rem; }
    .auth-hero-img { max-height: 140px; margin-bottom: 0.75rem; }
    .login-right-col .p-5 { padding: 1.25rem !important; }
    .login-stack { row-gap: clamp(0.5rem, 2vh, 1rem); }
    
    .card-body { padding: 2rem 1.25rem; }
    
    .login-image-content { padding: 2rem 1rem; }
    
    .feature-item { font-size: 1rem; }
    
    .btn-user { padding: 0.9rem 1.2rem; font-size: 0.95rem; width: 100%; }
    
    .form-control-user { padding: 0.9rem 1rem; font-size: 1rem; border-radius: var(--input-radius); }
}

@media (max-width: 576px) {
    /* Full-width content on smallest screens: drop card chrome */
    .bg-gradient-primary { padding: 0.5rem; }
    .bg-gradient-primary > .container { padding-left: 0 !important; padding-right: 0 !important; }
    .bg-gradient-primary > .container > .row { margin-left: 0 !important; margin-right: 0 !important; }
    .bg-gradient-primary > .container > .row > [class^="col-"],
    .bg-gradient-primary > .container > .row > [class*=" col-"] { padding-left: 0 !important; padding-right: 0 !important; }
    .card { margin: 0; border: none; border-radius: 1rem; box-shadow: none; overflow: hidden; }
    .card-body { padding: 0; }
    .login-right-col .p-5 { padding: 1rem !important; }
    
    .btn-group { gap: 0.25rem; display: flex; justify-content: center; }
    .btn-group .btn { font-size: 0.8rem; padding: 0.35rem 0.6rem; border-width: 1px; }
    .auth-hero-img { display: block; max-height: 120px; width: 100%; }
    .login-right-col .p-5 { padding-top: 1rem !important; }
}

/* Animation Effects */
@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(30px); }
    to { opacity: 1; transform: translateY(0); }
}

.card {
    animation: fadeInUp 0.5s ease-out;
}

.feature-item {
    animation: fadeInUp 0.5s ease-out;
}

.feature-item:nth-child(1) { animation-delay: 0.1s; }
.feature-item:nth-child(2) { animation-delay: 0.2s; }
.feature-item:nth-child(3) { animation-delay: 0.3s; }

/* Focus States */
.form-control:focus,
.btn:focus {
    outline: none;
    box-shadow: 0 0 0 0.2rem rgba(85, 195, 237, 0.25);
}

/* Loading States */
.btn.loading {
    position: relative;
    color: transparent;
}

.btn.loading::after {
    content: '';
    position: absolute;
    width: 16px;
    height: 16px;
    top: 50%;
    left: 50%;
    margin-left: -8px;
    margin-top: -8px;
    border: 2px solid transparent;
    border-top-color: currentColor;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}