/**
 * E-Pilketos v2.0 - Institutional Design System
 * SMK SIG (Sekolah Menengah Kejuruan SIG)
 * Restrained, clean, functional, professional.
 */

:root {
    --maroon-950: #3c101d;
    --maroon-900: #511524;
    --maroon-800: #6e1f31;
    --maroon-700: #88283d;
    --maroon-100: #f4e8ea;
    --maroon-050: #fbf5f6;

    --ink-primary: #1f2328;
    --ink-secondary: #57606a;
    --ink-tertiary: #8c959f;

    --canvas: #f6f7f8;
    --paper: #ffffff;
    --surface-subtle: #f0f2f4;
    --line: #d0d7de;
    --line-subtle: #e8ecf0;

    --success: #1a7f37;
    --success-bg: #dafbe1;
    --warning: #9a6700;
    --warning-bg: #fff8c5;
    --danger: #cf222e;
    --danger-bg: #ffebe9;

    --radius-sm: 4px;
    --radius-md: 6px;
    --radius-lg: 8px;

    --shadow-subtle: 0 1px 3px rgba(31, 35, 40, 0.08);
    --shadow-card: 0 1px 4px rgba(31, 35, 40, 0.1), 0 3px 8px rgba(31, 35, 40, 0.04);
}

* {
    box-sizing: border-box;
}

body {
    background-color: var(--canvas);
    color: var(--ink-primary);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    font-size: 14.5px;
    line-height: 1.55;
    margin: 0;
    padding: 0;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

main {
    flex: 1;
}

/* Fractional Spacing Utilities */
.p-2\.5 { padding: 0.75rem !important; }
.py-2\.5 { padding-top: 0.625rem !important; padding-bottom: 0.625rem !important; }
.px-2\.5 { padding-left: 0.75rem !important; padding-right: 0.75rem !important; }

/* Institutional Top Banner & Nav */
.school-topbar {
    background-color: var(--maroon-900);
    color: #ffffff;
    border-bottom: 2px solid var(--maroon-700);
    padding: 10px 0;
}

.school-brand-lockup {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    color: inherit;
}

.school-brand-lockup img {
    height: 44px;
    width: auto;
    object-fit: contain;
    background: #ffffff;
    padding: 2px;
    border-radius: var(--radius-sm);
}

.school-brand-text {
    line-height: 1.2;
}

.school-brand-title {
    font-size: 17px;
    font-weight: 700;
    letter-spacing: -0.01em;
    color: #ffffff;
}

.school-brand-subtitle {
    font-size: 11.5px;
    color: #e5b9c2;
    letter-spacing: 0.03em;
    text-transform: uppercase;
}

/* Institutional Navigation */
.navbar-institutional {
    background: #ffffff;
    border-bottom: 1px solid var(--line);
    padding: 8px 0;
}

.nav-link-inst {
    color: var(--ink-secondary);
    font-weight: 500;
    font-size: 13.5px;
    padding: 6px 12px;
    border-radius: var(--radius-sm);
    text-decoration: none;
    transition: all 0.15s ease;
}

.nav-link-inst:hover {
    color: var(--maroon-800);
    background-color: var(--maroon-050);
}

.nav-link-inst.active {
    color: var(--maroon-900);
    background-color: var(--maroon-100);
    font-weight: 600;
}

/* Hero Section - Functional, clean, restrained */
.hero-inst {
    background: #ffffff;
    border-bottom: 1px solid var(--line);
    padding: 32px 0 28px;
    position: relative;
}

.hero-inst.has-bg {
    background-color: #ffffff;
    background-image: linear-gradient(to right, rgba(255, 255, 255, 0.96) 35%, rgba(255, 255, 255, 0.88) 100%), url('../images/campus-hero.jpg');
    background-size: cover;
    background-position: center right;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 4px 10px;
    border-radius: var(--radius-sm);
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 0.02em;
    margin-bottom: 12px;
}

.badge-open {
    background: var(--success-bg);
    color: var(--success);
    border: 1px solid rgba(26, 127, 55, 0.2);
}

.badge-draft {
    background: var(--warning-bg);
    color: var(--warning);
    border: 1px solid rgba(154, 103, 0, 0.2);
}

.badge-closed {
    background: var(--danger-bg);
    color: var(--danger);
    border: 1px solid rgba(207, 34, 46, 0.2);
}

.hero-title {
    font-size: 28px;
    font-weight: 700;
    color: var(--maroon-950);
    letter-spacing: -0.02em;
    margin: 0 0 8px;
    line-height: 1.25;
}

.hero-desc {
    font-size: 15px;
    color: var(--ink-secondary);
    margin: 0 0 20px;
    max-width: 620px;
}

/* Institutional Buttons */
.btn-sig {
    background-color: var(--maroon-800);
    color: #ffffff;
    border: 1px solid var(--maroon-900);
    padding: 9px 20px;
    font-size: 14px;
    font-weight: 600;
    border-radius: var(--radius-sm);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    cursor: pointer;
    text-decoration: none;
    transition: background-color 0.15s ease;
}

.btn-sig:hover, .btn-sig:focus {
    background-color: var(--maroon-900);
    color: #ffffff;
}

.btn-sig-outline {
    background-color: transparent;
    color: var(--maroon-800);
    border: 1px solid var(--maroon-800);
    padding: 8px 18px;
    font-size: 14px;
    font-weight: 600;
    border-radius: var(--radius-sm);
    display: inline-flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    text-decoration: none;
}

.btn-sig-outline:hover {
    background-color: var(--maroon-050);
    color: var(--maroon-950);
}

.btn-sig-secondary {
    background-color: #ffffff;
    color: var(--ink-primary);
    border: 1px solid var(--line);
    padding: 8px 16px;
    font-size: 13.5px;
    font-weight: 500;
    border-radius: var(--radius-sm);
    cursor: pointer;
    text-decoration: none;
}

.btn-sig-secondary:hover {
    background-color: var(--surface-subtle);
    color: var(--ink-primary);
}

/* Cards & Layout */
.card-inst {
    background: #ffffff;
    border: 1px solid var(--line);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-subtle);
    overflow: hidden;
}

.card-inst-header {
    background: #fafbfc;
    border-bottom: 1px solid var(--line);
    padding: 12px 18px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.card-inst-title {
    font-size: 14px;
    font-weight: 600;
    color: var(--ink-primary);
    margin: 0;
}

.card-inst-body {
    padding: 18px;
}

/* Stepper Bar for Voting Flow */
.vote-stepper {
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: #ffffff;
    border: 1px solid var(--line);
    border-radius: var(--radius-md);
    padding: 10px 16px;
    margin-bottom: 24px;
}

.stepper-item {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    font-weight: 500;
    color: var(--ink-tertiary);
}

.stepper-item.active {
    color: var(--maroon-900);
    font-weight: 700;
}

.stepper-item.completed {
    color: var(--success);
}

.stepper-badge {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    background: var(--surface-subtle);
    color: var(--ink-secondary);
    border: 1px solid var(--line);
}

.stepper-item.active .stepper-badge {
    background: var(--maroon-800);
    color: #ffffff;
    border-color: var(--maroon-900);
}

.stepper-item.completed .stepper-badge {
    background: var(--success);
    color: #ffffff;
    border-color: var(--success);
}

.stepper-divider {
    flex: 1;
    height: 1px;
    background: var(--line);
    margin: 0 12px;
}

/* Digital Ballot / Candidate Cards */
.ballot-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
}

.ballot-card {
    background: #ffffff;
    border: 2px solid var(--line);
    border-radius: var(--radius-md);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.ballot-card:hover {
    border-color: var(--maroon-700);
    box-shadow: var(--shadow-card);
}

.ballot-number-badge {
    background: var(--maroon-900);
    color: #ffffff;
    font-weight: 800;
    font-size: 20px;
    padding: 8px 16px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    letter-spacing: 0.03em;
}

.ballot-number-sub {
    font-size: 11px;
    font-weight: 600;
    color: #e5b9c2;
    text-transform: uppercase;
}

.ballot-photo-wrap {
    height: 250px;
    background: #f0f2f4;
    position: relative;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
}

.ballot-photo-wrap img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: top center;
}

.ballot-info {
    padding: 18px;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.ballot-name {
    font-size: 17px;
    font-weight: 700;
    color: var(--ink-primary);
    margin: 0 0 4px;
    line-height: 1.3;
}

.ballot-class {
    font-size: 12.5px;
    font-weight: 600;
    color: var(--maroon-800);
    margin-bottom: 12px;
}

.ballot-section-title {
    font-size: 11.5px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: var(--ink-secondary);
    margin: 8px 0 4px;
}

.ballot-vision-text {
    font-size: 13px;
    color: var(--ink-secondary);
    line-height: 1.45;
    margin-bottom: 12px;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.ballot-actions {
    margin-top: auto;
    padding-top: 14px;
    border-top: 1px solid var(--line-subtle);
    display: flex;
    gap: 8px;
}

.btn-vote-candidate {
    flex: 1;
    background: var(--maroon-800);
    color: #ffffff;
    font-weight: 700;
    font-size: 15px;
    padding: 10px;
    border: 1px solid var(--maroon-900);
    border-radius: var(--radius-sm);
    cursor: pointer;
    text-align: center;
    transition: background-color 0.15s ease;
}

.btn-vote-candidate:hover {
    background: var(--maroon-900);
    color: #ffffff;
}

/* Student & Class Selection Grids */
.class-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(130px, 1fr));
    gap: 10px;
}

.class-btn {
    background: #ffffff;
    border: 1px solid var(--line);
    border-radius: var(--radius-sm);
    padding: 12px 10px;
    text-align: center;
    cursor: pointer;
    text-decoration: none;
    color: var(--ink-primary);
    transition: all 0.12s ease;
}

.class-btn:hover {
    border-color: var(--maroon-800);
    background: var(--maroon-050);
    color: var(--maroon-950);
}

.class-btn-name {
    font-size: 14px;
    font-weight: 700;
    display: block;
    margin-bottom: 2px;
}

.class-btn-sub {
    font-size: 11px;
    color: var(--ink-secondary);
}

/* Student Attendance List */
.student-list {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    gap: 10px;
}

.student-item {
    background: #ffffff;
    border: 1px solid var(--line);
    border-radius: var(--radius-sm);
    padding: 10px 12px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    text-decoration: none;
    color: var(--ink-primary);
    transition: all 0.12s ease;
}

.student-item:not(.voted):hover {
    border-color: var(--maroon-800);
    background: var(--maroon-050);
}

.student-item.voted {
    background: #f8f9fa;
    border-color: var(--line-subtle);
    opacity: 0.65;
    cursor: not-allowed;
}

.student-absen-badge {
    width: 32px;
    height: 32px;
    background: var(--surface-subtle);
    border: 1px solid var(--line);
    color: var(--ink-primary);
    font-weight: 700;
    font-size: 13px;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.student-name-wrap {
    flex: 1;
    overflow: hidden;
}

.student-name {
    font-size: 13px;
    font-weight: 600;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    display: block;
}

/* Confirmation Modal & Card */
.confirm-box {
    background: #ffffff;
    border: 1px solid var(--line);
    border-radius: var(--radius-md);
    padding: 24px;
    max-width: 520px;
    margin: 0 auto;
    box-shadow: var(--shadow-card);
}

/* Admin Dashboard Tables & Elements */
.table-inst {
    width: 100%;
    border-collapse: collapse;
    font-size: 13.5px;
}

.table-inst th {
    background: #f6f8fa;
    color: var(--ink-secondary);
    font-weight: 600;
    text-align: left;
    padding: 9px 12px;
    border-bottom: 1px solid var(--line);
    border-top: 1px solid var(--line);
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.03em;
}

.table-inst td {
    padding: 10px 12px;
    border-bottom: 1px solid var(--line-subtle);
    color: var(--ink-primary);
    vertical-align: middle;
}

.table-inst tr:hover td {
    background-color: #fcfcfc;
}

/* Institutional Footer */
.school-footer {
    background: #ffffff;
    border-top: 1px solid var(--line);
    padding: 24px 0;
    margin-top: 40px;
    color: var(--ink-secondary);
    font-size: 12.5px;
}

.school-footer-brand {
    font-weight: 700;
    color: var(--maroon-900);
}

/* ==========================================================================
   Comprehensive Mobile & Tablet Responsiveness Adjustments
   Optimized for Android & iOS (360px - 768px viewports)
   ========================================================================== */

@media (max-width: 768px) {
    html, body {
        overflow-x: hidden;
        -webkit-tap-highlight-color: transparent;
    }

    body {
        font-size: 14px;
    }

    /* Prevent iOS Safari auto-zoom on input focus */
    input[type="text"],
    input[type="password"],
    input[type="number"],
    select.form-select,
    textarea.form-control {
        font-size: 16px !important;
    }

    /* Container Spacing */
    .container {
        padding-left: 14px;
        padding-right: 14px;
    }

    /* Institutional Topbar on Mobile */
    .school-topbar {
        padding: 8px 0;
    }
    .school-brand-lockup img {
        height: 36px;
    }
    .school-brand-title {
        font-size: 15px;
    }
    .school-brand-subtitle {
        font-size: 10px;
        max-width: 170px;
        white-space: nowrap;
        overflow: hidden;
        text-overflow: ellipsis;
    }

    /* Sub-Navbar Horizontal Scrollable */
    .navbar-institutional {
        padding: 4px 0;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
        scrollbar-width: none;
    }
    .navbar-institutional::-webkit-scrollbar {
        display: none;
    }
    .navbar-institutional .container,
    .navbar-institutional .container-fluid {
        display: flex;
        align-items: center;
        gap: 8px;
        width: max-content;
        min-width: 100%;
        flex-wrap: nowrap !important;
    }
    .navbar-institutional .container-fluid > div {
        flex-wrap: nowrap !important;
    }
    .nav-link-inst {
        padding: 6px 12px;
        font-size: 12.5px;
        white-space: nowrap;
    }

    /* Portal Landing Page */
    .portal-header-box {
        padding: 20px 14px 18px !important;
    }
    .portal-school-logo {
        height: 68px !important;
        margin-bottom: 8px !important;
    }
    .portal-header-box h1 {
        font-size: 20px !important;
    }
    .portal-header-box .text-danger {
        font-size: 13.5px !important;
    }
    .portal-choice-card {
        padding: 20px 16px !important;
    }
    .portal-choice-icon {
        width: 48px !important;
        height: 48px !important;
        font-size: 24px !important;
        margin-bottom: 12px !important;
    }

    /* Bilik Suara: Form Identitas Pemilih */
    .card-inst-body {
        padding: 16px !important;
    }
    .card-inst-header {
        padding: 12px 14px !important;
    }

    /* Voter Identity Banner on Mobile */
    .voter-identity-banner {
        padding: 12px 14px !important;
        gap: 12px !important;
    }
    .voter-identity-banner .absen-box {
        min-width: 46px !important;
        padding: 4px 8px !important;
    }

    /* Candidate Cards on Mobile (Surat Suara Digital) */
    .ballot-card {
        margin-bottom: 18px;
        border-width: 1.5px;
    }
    .ballot-number-badge {
        font-size: 17px;
        padding: 8px 14px;
    }
    .ballot-number-sub {
        font-size: 10px;
    }
    .ballot-photo-wrap {
        height: 220px !important;
    }
    .ballot-info {
        padding: 14px !important;
    }
    .ballot-name {
        font-size: 16px;
    }

    /* Touch-Friendly Action Buttons */
    .btn-sig,
    .btn-vote-candidate {
        min-height: 48px;
        font-size: 15px !important;
        padding: 12px 16px !important;
        width: 100%;
        display: flex;
        align-items: center;
        justify-content: center;
    }

    /* Modals on Mobile */
    .modal-dialog {
        margin: 12px;
    }
    .modal-content {
        border-radius: var(--radius-md);
    }
    .modal-body {
        padding: 18px 16px !important;
    }
    .modal-footer {
        padding: 10px 14px !important;
    }
    .modal-footer .btn {
        min-height: 42px;
    }

    /* Footer on Mobile */
    .school-footer {
        padding: 18px 0;
        text-align: center;
    }
    .school-footer .text-md-end {
        text-align: center !important;
        margin-top: 10px;
    }
}

/* ==========================================================================
   Tablet (768px - 1024px) & Kiosk Responsiveness
   Optimized for iPad, Galaxy Tab, and Touchscreen Laptops
   ========================================================================== */

@media (min-width: 769px) and (max-width: 1024px) {
    .container {
        max-width: 95%;
        padding-left: 20px;
        padding-right: 20px;
    }

    /* 2-Column layout on Tablet Portrait */
    .ballot-grid {
        grid-template-columns: repeat(2, 1fr) !important;
        gap: 18px;
    }

    .ballot-photo-wrap {
        height: 240px;
    }

    /* Touchscreen Tablet targets */
    .btn-vote-candidate {
        min-height: 48px;
        font-size: 15px;
    }

    .school-topbar .container {
        padding-top: 6px;
        padding-bottom: 6px;
    }
}

/* Touch Device Universal Target Sizing */
@media (pointer: coarse) {
    .btn,
    .btn-vote-candidate,
    .form-select,
    .form-control,
    .nav-link-inst {
        min-height: 44px;
    }
}

/* PWA Standalone Mode Adjustments (Kiosk Feel) */
@media (display-mode: standalone) {
    .school-topbar {
        padding-top: max(10px, env(safe-area-inset-top));
    }

    body {
        user-select: none;
        -webkit-user-select: none;
    }

    input, textarea, select {
        user-select: auto;
        -webkit-user-select: auto;
    }
}

/* ==========================================================================
   PWA Floating Install Banner
   ========================================================================== */
.pwa-floating-banner {
    position: fixed;
    bottom: 24px;
    left: 50%;
    transform: translateX(-50%);
    background: #ffffff;
    border: 1px solid var(--line);
    border-left: 5px solid var(--maroon-700);
    border-radius: 12px;
    padding: 12px 18px;
    box-shadow: 0 12px 36px rgba(0, 0, 0, 0.18);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    z-index: 1060;
    max-width: 520px;
    width: calc(100% - 32px);
    animation: pwaSlideUp 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.pwa-banner-content {
    display: flex;
    align-items: center;
    gap: 12px;
}

.pwa-banner-icon {
    width: 44px;
    height: 44px;
    border-radius: 10px;
    object-fit: cover;
    box-shadow: 0 2px 6px rgba(0,0,0,0.1);
}

.pwa-banner-title {
    font-size: 13.5px;
    font-weight: 700;
    color: var(--maroon-900);
    line-height: 1.2;
}

.pwa-banner-sub {
    font-size: 11.5px;
    color: var(--ink-secondary);
    margin-top: 3px;
}

.pwa-banner-actions {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-shrink: 0;
}

@keyframes pwaSlideUp {
    from {
        opacity: 0;
        transform: translate(-50%, 24px);
    }
    to {
        opacity: 1;
        transform: translate(-50%, 0);
    }
}