/* ============================================================
   kolejWeb - Authentication Stylesheet (auth.css)
   Clean, Professional Vanilla CSS with 'Inter' Font
   Theme: Dark Indigo (#312e81) | White Cards | Slate Text
   Fixed Navbar + Footer
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&display=swap');

/* ---------- CSS Custom Properties ---------- */
:root {
    --primary:        #312e81;
    --primary-mid:    #4338ca;
    --primary-light:  #6366f1;
    --primary-dark:   #1e1b4b;
    --white:          #ffffff;
    --bg-page:        #f1f5f9;
    --card-bg:        #ffffff;
    --text-dark:      #1e293b;
    --text-muted:     #64748b;
    --text-label:     #334155;
    --border-color:   #cbd5e1;
    --border-focus:   #4338ca;
    --input-bg:       #ffffff;
    --error-bg:       #fef2f2;
    --error-text:     #b91c1c;
    --error-border:   #fecaca;
    --shadow-card:    0 4px 24px rgba(0, 0, 0, 0.08);
    --radius-sm:      6px;
    --radius-md:      10px;
    --radius-lg:      14px;
    --radius-pill:    50px;
    --navbar-h:       42px;
    --footer-h:       36px;
    --transition:     all 0.25s ease;
}

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

html { font-size: 14px; scroll-behavior: smooth; }

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background-color: var(--bg-page);
    color: var(--text-dark);
    line-height: 1.5;
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
}

a { text-decoration: none; color: inherit; }


/* ============================================================
   FIXED TOP NAVBAR
   ============================================================ */
.top-navbar {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 100;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-mid) 100%);
    padding: 0 24px;
    display: flex;
    align-items: center;
    justify-content: flex-end;
    height: var(--navbar-h);
}

.top-navbar .nav-links { display: flex; align-items: center; gap: 4px; }

.top-navbar .nav-link {
    color: var(--white);
    font-size: 0.72rem;
    font-weight: 600;
    letter-spacing: 0.8px;
    text-transform: uppercase;
    padding: 5px 14px;
    border-radius: var(--radius-sm);
    transition: var(--transition);
}

.top-navbar .nav-link:hover { background: rgba(255,255,255,0.15); }
.top-navbar .nav-link.active { background: rgba(255,255,255,0.2); }


/* ============================================================
   FIXED BOTTOM FOOTER
   ============================================================ */
.page-footer {
    position: fixed;
    bottom: 0; left: 0; right: 0;
    z-index: 100;
    background: var(--bg-page);
    border-top: 1px solid #e2e8f0;
    text-align: center;
    height: var(--footer-h);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.64rem;
    font-weight: 600;
    color: var(--text-muted);
    letter-spacing: 0.8px;
    text-transform: uppercase;
}


/* ============================================================
   SHARED UTILITIES
   ============================================================ */
.alert {
    padding: 8px 12px;
    border-radius: var(--radius-sm);
    font-size: 0.78rem;
    font-weight: 500;
    margin-bottom: 14px;
    display: flex;
    align-items: center;
    gap: 6px;
}

.alert-error {
    background: var(--error-bg);
    color: var(--error-text);
    border: 1px solid var(--error-border);
}

.alert-success {
    background: #f0fdf4;
    color: #166534;
    border: 1px solid #bbf7d0;
}

.field-error {
    font-size: 0.7rem;
    color: var(--error-text);
    margin-top: 3px;
    font-weight: 500;
}


/* ============================================================
   FORGOT / RESET PASSWORD PAGE
   ============================================================ */
.forgot-card {
    background: var(--card-bg);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-card);
    width: 100%;
    max-width: 420px;
    padding: 28px 30px 24px;
    animation: fadeInUp 0.4s ease forwards;
    text-align: center;
}

.forgot-icon {
    font-size: 2.2rem;
    margin-bottom: 10px;
}

.forgot-header {
    margin-bottom: 20px;
}

.forgot-header h1 {
    font-size: 1.2rem; font-weight: 800;
    color: var(--primary);
    margin-bottom: 6px;
}

.forgot-header p {
    font-size: 0.75rem;
    color: var(--text-muted);
    line-height: 1.5;
}

.forgot-form-group {
    margin-bottom: 14px;
    text-align: left;
}

.forgot-label {
    display: block;
    font-size: 0.75rem; font-weight: 600;
    color: var(--text-label);
    margin-bottom: 4px;
}

.forgot-input {
    width: 100%;
    padding: 8px 11px;
    font-family: 'Inter', sans-serif;
    font-size: 0.8rem;
    color: var(--text-dark);
    background: var(--input-bg);
    border: 1.5px solid var(--border-color);
    border-radius: var(--radius-sm);
    transition: var(--transition);
    outline: none;
}

.forgot-input:focus {
    border-color: var(--border-focus);
    box-shadow: 0 0 0 3px rgba(67,56,202,0.10);
}

.forgot-input::placeholder { color: #94a3b8; font-weight: 400; }
.forgot-input.is-invalid { border-color: var(--error-text); }

/* Password toggle for reset page */
.pw-reset-wrapper { position: relative; }
.pw-reset-wrapper .forgot-input { padding-right: 46px; }

.pw-reset-toggle {
    position: absolute; top: 50%; right: 8px;
    transform: translateY(-50%);
    background: none; border: none; cursor: pointer;
    color: var(--text-muted);
    font-size: 0.72rem; font-family: 'Inter', sans-serif;
    font-weight: 600; padding: 3px 5px;
    border-radius: 3px; transition: var(--transition);
}

.pw-reset-toggle:hover {
    color: var(--primary);
    background: rgba(67,56,202,0.06);
}

.btn-forgot {
    display: block; width: 100%;
    padding: 10px;
    font-family: 'Inter', sans-serif;
    font-size: 0.8rem; font-weight: 700;
    color: var(--white);
    background: linear-gradient(135deg, var(--primary-mid) 0%, var(--primary-light) 100%);
    border: none;
    border-radius: var(--radius-pill);
    cursor: pointer; transition: var(--transition);
    letter-spacing: 0.8px; text-transform: uppercase;
    margin-top: 6px;
}

.btn-forgot:hover {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-mid) 100%);
    box-shadow: 0 4px 14px rgba(49,46,129,0.3);
    transform: translateY(-1px);
}

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

.forgot-footer {
    text-align: center; margin-top: 18px;
    font-size: 0.75rem;
}

.forgot-footer a {
    color: var(--primary-mid); font-weight: 600;
    transition: var(--transition);
}

.forgot-footer a:hover { color: var(--primary); text-decoration: underline; }

@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(16px); }
    to   { opacity: 1; transform: translateY(0); }
}


/* ============================================================
   LOGIN PAGE
   ============================================================ */
.login-page-wrapper {
    min-height: 100vh;
    padding-top: calc(var(--navbar-h) + 24px);
    padding-bottom: calc(var(--footer-h) + 24px);
    padding-left: 20px;
    padding-right: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.login-card {
    background: var(--card-bg);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-card);
    width: 100%;
    max-width: 720px;
    overflow: hidden;
    animation: fadeInUp 0.4s ease forwards;
}

.login-card-title {
    text-align: center;
    padding: 20px 20px 14px;
    border-bottom: 1px solid #f1f5f9;
}

.login-card-title h1 {
    font-size: 1.3rem;
    font-weight: 900;
    color: var(--primary);
    text-transform: uppercase;
}

.login-card-body {
    display: flex;
    min-height: 260px;
}

.login-form-col {
    flex: 1;
    padding: 20px 24px 22px;
    display: flex;
    flex-direction: column;
}

.login-image-col {
    flex: 0 0 300px;
    position: relative;
    overflow: hidden;
    background: #e2e8f0;
}

.login-image-col img {
    width: 100%; height: 100%;
    object-fit: cover; display: block;
}

.login-image-col .image-placeholder {
    width: 100%; height: 100%;
    display: flex; align-items: center; justify-content: center;
    background: linear-gradient(135deg, #e2e8f0 0%, #cbd5e1 100%);
    color: var(--text-muted);
    font-size: 0.75rem;
}

.login-image-col .logo-badge {
    position: absolute;
    top: 10px; right: 10px;
    width: 50px; height: 50px;
    background: var(--white);
    border-radius: var(--radius-sm);
    box-shadow: 0 2px 8px rgba(0,0,0,0.12);
    display: flex; align-items: center; justify-content: center;
    padding: 5px;
}

.login-image-col .logo-badge img {
    width: 100%; height: 100%; object-fit: contain;
}

/* Radio Toggle */
.role-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 22px;
    margin-bottom: 16px;
}

.role-toggle label {
    display: flex; align-items: center; gap: 6px;
    font-size: 0.78rem; font-weight: 500;
    color: var(--text-dark); cursor: pointer;
}

.role-toggle input[type="radio"] {
    appearance: none; -webkit-appearance: none;
    width: 15px; height: 15px;
    border: 2px solid var(--border-color);
    border-radius: 50%; cursor: pointer;
    transition: var(--transition); position: relative;
}

.role-toggle input[type="radio"]:checked { border-color: var(--primary-mid); }

.role-toggle input[type="radio"]:checked::after {
    content: '';
    position: absolute; top: 50%; left: 50%;
    transform: translate(-50%, -50%);
    width: 7px; height: 7px;
    background: var(--primary-mid); border-radius: 50%;
}

/* Login Form Fields */
.login-form-group { margin-bottom: 12px; }

.login-form-group .form-label-top {
    display: block;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 4px;
}

.login-form-group .label-row {
    display: flex; align-items: center;
    justify-content: space-between;
    margin-bottom: 4px;
}

.login-form-group .label-row .form-label-top { margin-bottom: 0; }

.login-form-group .forgot-link {
    font-size: 0.65rem; color: var(--text-muted);
    font-weight: 500; transition: var(--transition);
}

.login-form-group .forgot-link:hover { color: var(--primary-mid); }

.login-form-input {
    width: 100%;
    padding: 8px 11px;
    font-family: 'Inter', sans-serif;
    font-size: 0.8rem;
    color: var(--text-dark);
    background: var(--input-bg);
    border: 1.5px solid var(--border-color);
    border-radius: var(--radius-sm);
    transition: var(--transition);
    outline: none;
}

.login-form-input:focus {
    border-color: var(--border-focus);
    box-shadow: 0 0 0 3px rgba(67,56,202,0.10);
}

.login-form-input::placeholder { color: #94a3b8; font-weight: 400; }
.login-form-input.is-invalid { border-color: var(--error-text); }

/* Password Eye Icon */
.password-wrapper { position: relative; }
.password-wrapper .login-form-input { padding-right: 38px; }

/* Hide default browser password reveal/clear buttons */
input::-ms-reveal,
input::-ms-clear,
input::-webkit-contacts-auto-fill-button,
input::-webkit-credentials-auto-fill-button {
    display: none !important;
}

.password-toggle-icon {
    position: absolute; top: 50%; right: 8px;
    transform: translateY(-50%);
    background: none; border: none; cursor: pointer;
    color: var(--text-muted);
    display: flex; align-items: center;
    padding: 2px; transition: var(--transition);
}

.password-toggle-icon:hover { color: var(--primary); }
.password-toggle-icon svg { width: 16px; height: 16px; }

/* Login Button */
.btn-login {
    display: block; width: 100%;
    padding: 9px;
    font-family: 'Inter', sans-serif;
    font-size: 0.8rem; font-weight: 700;
    color: var(--white);
    background: linear-gradient(135deg, var(--primary-mid) 0%, var(--primary-light) 100%);
    border: none;
    border-radius: var(--radius-pill);
    cursor: pointer; transition: var(--transition);
    letter-spacing: 1px; text-transform: uppercase;
    margin-top: 4px;
}

.btn-login:hover {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-mid) 100%);
    box-shadow: 0 4px 14px rgba(49,46,129,0.3);
    transform: translateY(-1px);
}

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

/* Login Footer */
.login-footer {
    text-align: center; margin-top: 14px;
    font-size: 0.72rem; color: var(--text-muted);
}

.login-footer a {
    color: var(--primary-mid); font-weight: 700;
    text-transform: uppercase; letter-spacing: 0.3px;
    transition: var(--transition);
}

.login-footer a:hover { color: var(--primary); text-decoration: underline; }


/* ============================================================
   SIGNUP PAGE — TWO-COLUMN (Details | Password)
   ============================================================ */
.signup-page-wrapper {
    min-height: 100vh;
    padding-top: calc(var(--navbar-h) + 24px);
    padding-bottom: calc(var(--footer-h) + 24px);
    padding-left: 20px;
    padding-right: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.signup-card {
    background: var(--card-bg);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-card);
    width: 100%;
    max-width: 740px;
    padding: 28px 32px 24px;
    animation: fadeInUp 0.4s ease forwards;
}

.signup-header {
    text-align: center;
    margin-bottom: 20px;
    padding-bottom: 16px;
    border-bottom: 1px solid #f1f5f9;
}

.signup-header h1 {
    font-size: 1.25rem; font-weight: 900;
    color: var(--primary); text-transform: uppercase;
    margin-bottom: 2px;
}

.signup-header p {
    font-size: 0.78rem; color: var(--text-muted);
}

/* Two-Column Container */
.signup-columns {
    display: flex;
    gap: 24px;
    margin-bottom: 18px;
}

.signup-col { flex: 1; min-width: 0; }

.signup-columns .signup-col:first-child {
    padding-right: 24px;
    border-right: 1px solid #e2e8f0;
}

/* Column Heading */
.col-heading {
    display: flex; align-items: center; gap: 6px;
    font-size: 0.78rem; font-weight: 700;
    color: var(--primary);
    margin-bottom: 14px; padding-bottom: 8px;
    border-bottom: 2px solid var(--primary-mid);
    text-transform: uppercase; letter-spacing: 0.4px;
}

.col-heading-icon { font-size: 0.85rem; }

/* Signup Form Groups */
.signup-form-group { margin-bottom: 12px; }

.signup-label {
    display: block;
    font-size: 0.75rem; font-weight: 600;
    color: var(--text-label);
    margin-bottom: 4px;
}

.signup-input {
    width: 100%;
    padding: 8px 11px;
    font-family: 'Inter', sans-serif;
    font-size: 0.8rem;
    color: var(--text-dark);
    background: var(--input-bg);
    border: 1.5px solid var(--border-color);
    border-radius: var(--radius-sm);
    transition: var(--transition);
    outline: none;
}

.signup-input:focus {
    border-color: var(--border-focus);
    box-shadow: 0 0 0 3px rgba(67,56,202,0.10);
}

.signup-input::placeholder { color: #94a3b8; font-weight: 400; }
.signup-input.is-invalid { border-color: var(--error-text); }

/* Password Wrapper */
.signup-pw-wrapper { position: relative; }
.signup-pw-wrapper .signup-input { padding-right: 46px; }

.signup-pw-toggle {
    position: absolute; top: 50%; right: 8px;
    transform: translateY(-50%);
    background: none; border: none; cursor: pointer;
    color: var(--text-muted);
    display: flex; align-items: center;
    padding: 2px; transition: var(--transition);
}

.signup-pw-toggle:hover {
    color: var(--primary);
}
.signup-pw-toggle svg { width: 16px; height: 16px; }

/* Password Requirements */
.pw-requirements {
    margin-top: 16px;
    padding: 10px 12px;
    background: #f8fafc;
    border: 1px solid #e2e8f0;
    border-radius: var(--radius-sm);
}

.pw-requirements-title {
    font-size: 0.7rem; font-weight: 600;
    color: var(--text-label); margin-bottom: 4px;
}

.pw-requirements ul { list-style: none; padding: 0; }

.pw-requirements ul li {
    font-size: 0.68rem; color: var(--text-muted);
    padding: 1px 0 1px 14px; position: relative;
}

.pw-requirements ul li::before {
    content: '✓'; position: absolute; left: 0;
    color: var(--primary-mid); font-weight: 700; font-size: 0.65rem;
}

/* Signup Button */
.btn-signup {
    display: block; width: 100%;
    padding: 10px;
    font-family: 'Inter', sans-serif;
    font-size: 0.82rem; font-weight: 700;
    color: var(--white);
    background: linear-gradient(135deg, var(--primary-mid) 0%, var(--primary-light) 100%);
    border: none;
    border-radius: var(--radius-pill);
    cursor: pointer; transition: var(--transition);
    letter-spacing: 1px; text-transform: uppercase;
}

.btn-signup:hover {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-mid) 100%);
    box-shadow: 0 4px 14px rgba(49,46,129,0.3);
    transform: translateY(-1px);
}

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

/* Signup Footer */
.signup-footer {
    text-align: center; margin-top: 16px;
    font-size: 0.72rem; color: var(--text-muted);
}

.signup-footer a {
    color: var(--primary-mid); font-weight: 700;
    text-transform: uppercase; letter-spacing: 0.3px;
    transition: var(--transition);
}

.signup-footer a:hover { color: var(--primary); text-decoration: underline; }


/* ============================================================
   RESPONSIVE
   ============================================================ */

@media (max-width: 768px) {
    .login-card { max-width: 480px; }
    .login-card-body { flex-direction: column; }
    .login-image-col { flex: none; height: 160px; order: -1; }
    .login-form-col { padding: 18px 22px 22px; }
    .login-card-title h1 { font-size: 1.15rem; }

    .signup-card { max-width: 480px; padding: 22px 20px 20px; }
    .signup-columns { flex-direction: column; gap: 20px; }
    .signup-columns .signup-col:first-child {
        padding-right: 0; border-right: none;
        padding-bottom: 20px; border-bottom: 1px solid #e2e8f0;
    }
}

@media (max-width: 576px) {
    :root { --navbar-h: 38px; --footer-h: 32px; }

    .top-navbar { padding: 0 14px; height: 38px; }
    .top-navbar .nav-link { font-size: 0.68rem; padding: 4px 10px; }

    .login-page-wrapper,
    .signup-page-wrapper {
        padding-top: calc(38px + 14px);
        padding-bottom: calc(32px + 14px);
        padding-left: 12px; padding-right: 12px;
    }

    .login-card { border-radius: var(--radius-md); }
    .login-card-title { padding: 14px 14px 10px; }
    .login-card-title h1 { font-size: 1rem; }
    .login-image-col { height: 130px; }
    .login-form-col { padding: 14px 16px 18px; }

    .login-form-input, .signup-input { font-size: 1rem; padding: 10px 12px; }
    .btn-login, .btn-signup { padding: 11px; font-size: 0.8rem; }

    .signup-card { padding: 18px 14px 16px; border-radius: var(--radius-md); }
    .signup-header h1 { font-size: 1.05rem; }

    .page-footer { font-size: 0.56rem; height: 32px; }
}

@media (max-width: 380px) {
    .login-page-wrapper, .signup-page-wrapper { padding-left: 8px; padding-right: 8px; }
    .login-form-col { padding: 12px 12px 16px; }
    .signup-card { padding: 16px 12px 14px; }
}

@media (min-width: 1200px) {
    html { font-size: 15px; }
    .login-card { max-width: 780px; }
    .login-image-col { flex: 0 0 340px; }
    .login-form-col { padding: 26px 32px 28px; }
    .signup-card { max-width: 800px; padding: 32px 38px 28px; }
}