/* ============================================================
   VKHS Student Portal — Glassmorphism matching home page
   ============================================================ */

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

:root {
    --primary:      #0a192f;
    --accent:       #2e7d32;
    --accent-light: #4caf50;
    --accent-dark:  #1b5e20;
    --white:        #ffffff;
    --text:         #1a202c;
    --text-muted:   #718096;
    --glass:        rgba(255,255,255,0.25);
    --glass-solid:  rgba(255,255,255,0.75);
    --glass-border: rgba(255,255,255,0.3);
    --blur:         blur(20px);
    --shadow:       0 8px 32px rgba(31,38,135,0.15);
    --shadow-md:    0 15px 45px rgba(31,38,135,0.22);
    --radius:       24px;
    --radius-sm:    14px;
    --transition:   all 0.35s cubic-bezier(0.4,0,0.2,1);
}

* { margin:0; padding:0; box-sizing:border-box; }

body {
    font-family: 'Open Sans', system-ui, sans-serif;
    line-height: 1.6;
    color: var(--text);
}

h1,h2,h3,h4,h5 { font-family: 'Poppins', sans-serif; }
a { text-decoration: none; color: inherit; transition: var(--transition); }

/* ============================================================
   Login Page
   ============================================================ */
.login-body {
    min-height: 100vh;
    background: linear-gradient(135deg, #0a192f 0%, #1b5e20 60%, #2e7d32 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

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

.login-card {
    background: rgba(255,255,255,0.14);
    backdrop-filter: var(--blur);
    -webkit-backdrop-filter: var(--blur);
    border: 1px solid rgba(255,255,255,0.22);
    border-radius: var(--radius);
    padding: 44px 40px;
    box-shadow: 0 20px 60px rgba(0,0,0,0.35);
    text-align: center;
}

.login-logo img {
    width: 78px;
    height: 78px;
    object-fit: contain;
    border-radius: 50%;
    background: rgba(255,255,255,0.18);
    padding: 6px;
    box-shadow: 0 6px 20px rgba(0,0,0,0.2);
    margin-bottom: 16px;
}

.login-card h1 {
    font-size: 1.6rem;
    font-weight: 700;
    color: #fff;
    margin-bottom: 4px;
}

.login-subtitle {
    font-size: 0.82rem;
    color: rgba(255,255,255,0.55);
    margin-bottom: 28px;
}

.login-form { text-align: left; }

.s-form-group { margin-bottom: 18px; }

.s-label {
    display: block;
    font-size: 0.75rem;
    font-weight: 700;
    color: rgba(255,255,255,0.75);
    margin-bottom: 6px;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    font-family: 'Poppins', sans-serif;
}

.s-label small { font-weight: 400; color: rgba(255,255,255,0.45); text-transform: none; letter-spacing: 0; }

.s-input {
    width: 100%;
    padding: 12px 16px;
    border: 1.5px solid rgba(255,255,255,0.2);
    border-radius: 12px;
    font-family: 'Open Sans', sans-serif;
    font-size: 0.9rem;
    background: rgba(255,255,255,0.1);
    color: #fff;
    transition: var(--transition);
}

.s-input::placeholder { color: rgba(255,255,255,0.35); }

.s-input:focus {
    outline: none;
    border-color: var(--accent-light);
    background: rgba(255,255,255,0.18);
    box-shadow: 0 0 0 3px rgba(76,175,80,0.25);
}

.s-btn-primary {
    display: block;
    width: 100%;
    padding: 13px;
    background: linear-gradient(135deg, var(--accent), var(--accent-light));
    color: #fff;
    border: none;
    border-radius: 50px;
    font-family: 'Poppins', sans-serif;
    font-size: 0.9rem;
    font-weight: 700;
    cursor: pointer;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    transition: var(--transition);
    box-shadow: 0 6px 20px rgba(46,125,50,0.4);
    margin-top: 8px;
}

.s-btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 28px rgba(46,125,50,0.5);
}

.login-hint {
    margin-top: 20px;
    font-size: 0.78rem;
    color: rgba(255,255,255,0.45);
    line-height: 1.5;
}

.back-link {
    display: inline-block;
    margin-top: 16px;
    font-size: 0.82rem;
    color: rgba(255,255,255,0.65);
    font-weight: 500;
    transition: var(--transition);
}

.back-link:hover { color: var(--accent-light); }

/* ============================================================
   Alerts
   ============================================================ */
.s-alert {
    padding: 12px 16px;
    border-radius: 12px;
    font-size: 0.85rem;
    margin-bottom: 18px;
    text-align: left;
    backdrop-filter: blur(8px);
    font-weight: 500;
}

.s-alert-error   { background: rgba(252,165,165,0.25); color: #fca5a5; border: 1px solid rgba(252,165,165,0.35); }
.s-alert-success { background: rgba(134,239,172,0.25); color: #86efac; border: 1px solid rgba(134,239,172,0.35); }

/* ============================================================
   Dashboard Body + Header
   ============================================================ */
.dash-body {
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
    background-attachment: fixed;
    min-height: 100vh;
}

.dash-header {
    background: rgba(10,25,47,0.75);
    backdrop-filter: var(--blur);
    -webkit-backdrop-filter: var(--blur);
    border-bottom: 1px solid rgba(255,255,255,0.1);
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: 0 4px 20px rgba(0,0,0,0.2);
}

.dash-header-inner {
    max-width: 1100px;
    margin: 0 auto;
    padding: 12px 28px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.dash-brand {
    display: flex;
    align-items: center;
    gap: 12px;
    color: #fff;
    font-weight: 800;
    font-size: 1.1rem;
    font-family: 'Poppins', sans-serif;
    letter-spacing: 0.02em;
}

.dash-brand img {
    width: 38px;
    height: 38px;
    object-fit: contain;
    border-radius: 50%;
    background: rgba(255,255,255,0.12);
    padding: 3px;
}

.dash-user {
    display: flex;
    align-items: center;
    gap: 14px;
    color: rgba(255,255,255,0.8);
    font-size: 0.85rem;
}

.s-btn-logout {
    padding: 7px 18px;
    background: rgba(255,255,255,0.1);
    border: 1px solid rgba(255,255,255,0.18);
    border-radius: 50px;
    color: #fff;
    font-size: 0.78rem;
    font-weight: 600;
    font-family: 'Poppins', sans-serif;
    cursor: pointer;
    transition: var(--transition);
    letter-spacing: 0.04em;
}

.s-btn-logout:hover {
    background: rgba(220,38,38,0.4);
    border-color: rgba(220,38,38,0.5);
}

/* ============================================================
   Dashboard main
   ============================================================ */
.dash-main {
    max-width: 1100px;
    margin: 0 auto;
    padding: 36px 28px;
}

.dash-section { margin-bottom: 40px; }

.dash-section-title {
    font-size: 1.15rem;
    font-weight: 700;
    font-family: 'Poppins', sans-serif;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 18px;
    display: flex;
    align-items: center;
    gap: 8px;
    padding-bottom: 10px;
    border-bottom: 2px solid rgba(46,125,50,0.2);
}

/* ============================================================
   Profile card
   ============================================================ */
.profile-card {
    background: var(--glass);
    backdrop-filter: var(--blur);
    -webkit-backdrop-filter: var(--blur);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius);
    padding: 32px;
    box-shadow: var(--shadow);
    display: flex;
    gap: 28px;
    align-items: flex-start;
    flex-wrap: wrap;
    transition: var(--transition);
}

.profile-card:hover { box-shadow: var(--shadow-md); }

.profile-avatar {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--accent), var(--accent-light));
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.2rem;
    font-weight: 700;
    font-family: 'Poppins', sans-serif;
    flex-shrink: 0;
    box-shadow: 0 6px 20px rgba(46,125,50,0.4);
}

.profile-info { flex: 1; min-width: 200px; }

.profile-info h2 {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 2px;
}

.profile-class {
    font-size: 0.85rem;
    background: linear-gradient(135deg, var(--accent), var(--accent-light));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-weight: 600;
    margin-bottom: 18px;
}

.profile-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(185px, 1fr));
    gap: 10px;
}

.profile-field {
    background: rgba(255,255,255,0.45);
    backdrop-filter: blur(8px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-sm);
    padding: 11px 15px;
    transition: var(--transition);
}

.profile-field:hover { background: rgba(255,255,255,0.65); }

.pf-label {
    display: block;
    font-size: 0.65rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.07em;
    color: var(--text-muted);
    margin-bottom: 3px;
    font-family: 'Poppins', sans-serif;
}

.pf-value {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--primary);
    word-break: break-all;
}

/* ============================================================
   Results
   ============================================================ */
.exam-card {
    background: var(--glass);
    backdrop-filter: var(--blur);
    -webkit-backdrop-filter: var(--blur);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius);
    margin-bottom: 20px;
    box-shadow: var(--shadow);
    overflow: hidden;
    transition: var(--transition);
}

.exam-card:hover { box-shadow: var(--shadow-md); transform: translateY(-2px); }

.exam-header {
    padding: 15px 24px;
    background: rgba(46,125,50,0.1);
    border-bottom: 1px solid rgba(255,255,255,0.35);
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 8px;
}

.exam-name {
    font-weight: 700;
    font-size: 0.95rem;
    font-family: 'Poppins', sans-serif;
    color: var(--primary);
}

.exam-summary {
    font-size: 0.82rem;
    color: var(--text-muted);
}

.table-scroll { overflow-x: auto; }

.result-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.875rem;
}

.result-table th {
    background: rgba(10,25,47,0.06);
    padding: 10px 18px;
    text-align: left;
    font-weight: 700;
    color: var(--primary);
    border-bottom: 2px solid rgba(255,255,255,0.4);
    white-space: nowrap;
    font-size: 0.72rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-family: 'Poppins', sans-serif;
}

.result-table td {
    padding: 11px 18px;
    border-bottom: 1px solid rgba(255,255,255,0.35);
    vertical-align: middle;
}

.result-table tr:last-child td { border-bottom: none; }
.result-table tr:hover td { background: rgba(255,255,255,0.3); }

/* Grade pills */
.grade-pill {
    display: inline-block;
    padding: 3px 11px;
    border-radius: 50px;
    font-size: 0.72rem;
    font-weight: 700;
    font-family: 'Poppins', sans-serif;
}

.grade-ap { background: rgba(134,239,172,0.4); color: #14532d; border: 1px solid rgba(134,239,172,0.5); }
.grade-a  { background: rgba(134,239,172,0.3); color: #166534; border: 1px solid rgba(134,239,172,0.4); }
.grade-b  { background: rgba(147,197,253,0.4); color: #1e3a8a; border: 1px solid rgba(147,197,253,0.5); }
.grade-c  { background: rgba(253,224,71,0.4);  color: #713f12; border: 1px solid rgba(253,224,71,0.5); }
.grade-d  { background: rgba(251,191,36,0.35); color: #78350f; border: 1px solid rgba(251,191,36,0.45); }
.grade-f  { background: rgba(252,165,165,0.4); color: #7f1d1d; border: 1px solid rgba(252,165,165,0.5); }

/* ============================================================
   Resources
   ============================================================ */
.resources-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 20px;
}

.resource-card {
    background: var(--glass);
    backdrop-filter: var(--blur);
    -webkit-backdrop-filter: var(--blur);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius);
    padding: 22px;
    box-shadow: var(--shadow);
    position: relative;
    transition: var(--transition);
    overflow: hidden;
}

.resource-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 4px;
}

.resource-link::before   { background: linear-gradient(90deg, #3b82f6, #60a5fa); }
.resource-pdf::before    { background: linear-gradient(90deg, #ef4444, #f87171); }
.resource-notice::before { background: linear-gradient(90deg, var(--accent), var(--accent-light)); }

.resource-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
    background: rgba(255,255,255,0.35);
}

.res-type-badge {
    font-size: 0.68rem;
    font-weight: 700;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-bottom: 8px;
    font-family: 'Poppins', sans-serif;
}

.res-title {
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 7px;
    line-height: 1.4;
    font-family: 'Poppins', sans-serif;
}

.res-desc {
    font-size: 0.82rem;
    color: var(--text-muted);
    margin-bottom: 14px;
    line-height: 1.55;
}

.res-action { margin-top: 14px; }

.s-btn-resource {
    display: inline-block;
    padding: 8px 18px;
    background: linear-gradient(135deg, var(--accent), var(--accent-light));
    color: #fff;
    border-radius: 50px;
    font-size: 0.8rem;
    font-weight: 700;
    font-family: 'Poppins', sans-serif;
    letter-spacing: 0.03em;
    box-shadow: 0 4px 12px rgba(46,125,50,0.3);
    transition: var(--transition);
}

.s-btn-resource:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(46,125,50,0.4);
}

.resource-link .s-btn-resource {
    background: linear-gradient(135deg, #3b82f6, #60a5fa);
    box-shadow: 0 4px 12px rgba(59,130,246,0.3);
}

.resource-link .s-btn-resource:hover { box-shadow: 0 8px 20px rgba(59,130,246,0.4); }

.resource-pdf .s-btn-resource {
    background: linear-gradient(135deg, #ef4444, #f87171);
    box-shadow: 0 4px 12px rgba(239,68,68,0.3);
}

.resource-pdf .s-btn-resource:hover { box-shadow: 0 8px 20px rgba(239,68,68,0.4); }

.res-class-tag {
    display: inline-block;
    margin-top: 12px;
    padding: 3px 10px;
    background: rgba(46,125,50,0.15);
    color: var(--accent-dark);
    border: 1px solid rgba(46,125,50,0.25);
    border-radius: 50px;
    font-size: 0.68rem;
    font-weight: 700;
    font-family: 'Poppins', sans-serif;
    letter-spacing: 0.04em;
    text-transform: uppercase;
}

/* ============================================================
   Empty state
   ============================================================ */
.empty-state {
    background: var(--glass);
    backdrop-filter: var(--blur);
    border: 1px dashed rgba(255,255,255,0.4);
    border-radius: var(--radius);
    padding: 40px;
    text-align: center;
    color: var(--text-muted);
    font-size: 0.9rem;
}

/* ============================================================
   Footer
   ============================================================ */
.dash-footer {
    text-align: center;
    padding: 24px;
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-top: 10px;
}

.dash-footer a { color: var(--accent); font-weight: 600; }
.dash-footer a:hover { color: var(--accent-dark); }

/* ============================================================
   Responsive
   ============================================================ */
@media (max-width: 700px) {
    .login-card { padding: 30px 22px; }
    .profile-card { flex-direction: column; }
    .dash-user span { display: none; }
    .dash-main { padding: 20px 16px; }
    .exam-header { flex-direction: column; align-items: flex-start; }
    .dash-header-inner { padding: 12px 16px; }
}