/* ==========================================
   SESCOA — Architectural Design System
   Drafted, architectural aesthetic (Paper, Ink, Blueprint, Oxide, Concrete)
   ========================================== */

/* ===== Architectural Design Tokens ===== */
:root {
    /* Color Palette */
    --paper: #EDEBE6;         /* Light concrete/paper background */
    --paper-light: #F6F5F2;   /* Crisp paper card fill */
    --ink: #1C1D1B;           /* Dark charcoal ink text & fills */
    --ink-muted: #525450;     /* Muted secondary text */
    --blueprint: #2B4C7E;     /* Structural blueprint blue accent */
    --oxide: #A8432E;         /* Brick/oxide rust accent (used sparingly) */
    --concrete: #C9C4B8;      /* Hairlines & structural borders */
    --concrete-light: #DFDBD3;

    /* Typography */
    --font-heading: 'Bricolage Grotesque', sans-serif;
    --font-body: 'Public Sans', sans-serif;
    --font-mono: 'IBM Plex Mono', monospace;

    /* Spacing */
    --section-py: 5rem;
}

/* ===== Base Reset & Clean Hairlines ===== */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
}

body {
    font-family: var(--font-body);
    font-size: 1rem;
    line-height: 1.6;
    color: var(--ink);
    background: var(--paper);
    overflow-x: hidden;
    position: relative;
}

/* Architectural Margin Scale Bar Running Down Left Margin */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 12px;
    width: 1px;
    height: 100vh;
    background: repeating-linear-gradient(
        to bottom,
        var(--concrete),
        var(--concrete) 10px,
        transparent 10px,
        transparent 20px
    );
    z-index: 1040;
    pointer-events: none;
    opacity: 0.6;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    color: var(--ink);
    letter-spacing: -0.02em;
}

h1 { font-size: clamp(2.2rem, 5vw, 3.8rem); line-height: 1.1; }
h2 { font-size: clamp(1.6rem, 3.5vw, 2.4rem); }
h3 { font-size: clamp(1.3rem, 2.5vw, 1.8rem); }
h4 { font-size: 1.2rem; }

a {
    color: var(--blueprint);
    text-decoration: none;
    transition: color 200ms ease;
}

a:hover {
    color: var(--oxide);
}

/* ===== Navbar (Hairline & Architectural Branding) ===== */
.sescoa-navbar {
    background: rgba(28, 29, 27, 0.96);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--concrete);
    padding: 0.75rem 0;
    transition: all 200ms ease;
    z-index: 1050;
}

.sescoa-navbar .brand-text {
    font-family: var(--font-heading);
    font-weight: 800;
    font-size: 1.35rem;
    letter-spacing: 1px;
    color: #FFF;
}

.sescoa-navbar .nav-link {
    font-family: var(--font-body);
    font-weight: 500;
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: rgba(255, 255, 255, 0.75) !important;
    padding: 0.5rem 1rem !important;
    border-radius: 2px;
}

.sescoa-navbar .nav-link:hover,
.sescoa-navbar .nav-link.active {
    color: #FFF !important;
    background: rgba(255, 255, 255, 0.08);
}

.sescoa-navbar .dropdown-menu {
    background: var(--ink);
    border: 1px solid var(--concrete);
    border-radius: 2px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.25);
}

.sescoa-navbar .dropdown-item {
    color: rgba(255, 255, 255, 0.8);
    font-size: 0.85rem;
    padding: 0.5rem 1.25rem;
}

.sescoa-navbar .dropdown-item:hover {
    background: rgba(255, 255, 255, 0.1);
    color: #FFF;
}

.sescoa-offcanvas {
    background: var(--ink);
    border-left: 1px solid var(--concrete);
}

.sescoa-offcanvas .nav-link {
    color: rgba(255, 255, 255, 0.8);
}

/* ===== Asymmetric Architectural Hero Section ===== */
.hero-section {
    position: relative;
    min-height: 82vh;
    display: flex;
    align-items: center;
    background: var(--ink);
    overflow: hidden;
}

.hero-carousel {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.hero-carousel .carousel-item {
    height: 82vh;
}

.hero-carousel .carousel-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    filter: grayscale(40%) contrast(1.1) brightness(0.35);
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(
        90deg,
        rgba(28, 29, 27, 0.95) 0%,
        rgba(28, 29, 27, 0.85) 50%,
        rgba(28, 29, 27, 0.4) 100%
    );
    z-index: 2;
}

.hero-content {
    position: relative;
    z-index: 3;
    color: #FFF;
    padding: 4rem 0;
}

.hero-stamp {
    display: inline-flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1.5rem;
    border-left: 3px solid var(--oxide);
    padding-left: 0.75rem;
}

.hero-stamp .sheet-number {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--oxide);
    font-weight: 600;
    letter-spacing: 1px;
}

.hero-stamp .stamp-text {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: rgba(255, 255, 255, 0.7);
    text-transform: uppercase;
}

.hero-title {
    color: #FFF;
    font-size: clamp(2.4rem, 5.5vw, 4rem);
    font-weight: 800;
    margin-bottom: 1.25rem;
}

.hero-title .text-serif {
    font-weight: 400;
    color: rgba(255, 255, 255, 0.9);
}

.hero-lead {
    font-size: clamp(1rem, 2vw, 1.2rem);
    color: rgba(255, 255, 255, 0.75);
    max-width: 620px;
    margin-bottom: 2.25rem;
    line-height: 1.7;
}

/* Hairline Sharp Architectural Buttons */
.hero-cta-group {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.btn-arch-primary {
    background: var(--paper);
    color: var(--ink);
    border: 1px solid var(--paper);
    padding: 0.85rem 2.25rem;
    border-radius: 2px;
    font-family: var(--font-body);
    font-weight: 600;
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    transition: all 200ms ease;
}

.btn-arch-primary:hover {
    background: var(--oxide);
    color: #FFF;
    border-color: var(--oxide);
}

.btn-arch-secondary {
    background: transparent;
    color: #FFF;
    border: 1px solid rgba(255, 255, 255, 0.4);
    padding: 0.85rem 2.25rem;
    border-radius: 2px;
    font-family: var(--font-body);
    font-weight: 600;
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    transition: all 200ms ease;
}

.btn-arch-secondary:hover {
    border-color: #FFF;
    background: rgba(255, 255, 255, 0.1);
    color: #FFF;
}

.btn-arch-outline {
    background: transparent;
    color: var(--ink);
    border: 1px solid var(--concrete);
    padding: 0.65rem 1.5rem;
    border-radius: 2px;
    font-family: var(--font-body);
    font-weight: 600;
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    transition: all 200ms ease;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.btn-arch-outline:hover {
    border-color: var(--blueprint);
    background: rgba(43, 76, 126, 0.05);
    color: var(--blueprint);
}

/* Hero Right Side Specs */
.hero-sheet-spec {
    border: 1px solid rgba(255, 255, 255, 0.15);
    padding: 1.5rem;
    background: rgba(0, 0, 0, 0.3);
    backdrop-filter: blur(8px);
    display: inline-block;
    text-align: left;
}

.hero-sheet-spec .spec-item {
    margin-bottom: 1rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    padding-bottom: 0.5rem;
}

.hero-sheet-spec .spec-item:last-child {
    margin-bottom: 0;
    border-bottom: none;
    padding-bottom: 0;
}

.hero-sheet-spec .spec-label {
    display: block;
    font-family: var(--font-mono);
    font-size: 0.7rem;
    color: rgba(255, 255, 255, 0.5);
    letter-spacing: 1px;
}

.hero-sheet-spec .spec-val {
    font-family: var(--font-heading);
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--paper);
}

/* ===== Page Banner (Technical Sheet Title Block Style) ===== */
.page-banner {
    background: var(--paper-light);
    border-bottom: 1px solid var(--concrete);
    padding: 4rem 0 3rem;
    text-align: left;
    position: relative;
    overflow: hidden;
}

.page-banner::after {
    content: '';
    position: absolute;
    bottom: 0;
    right: 5%;
    width: 250px;
    height: 100%;
    background: repeating-linear-gradient(
        45deg,
        var(--concrete-light),
        var(--concrete-light) 1px,
        transparent 1px,
        transparent 8px
    );
    opacity: 0.5;
    z-index: 1;
    pointer-events: none;
}

.page-banner h1 {
    color: var(--ink);
    font-size: clamp(2rem, 4vw, 2.8rem);
    margin-bottom: 0.75rem;
    position: relative;
    z-index: 2;
}

.page-banner .breadcrumb-nav {
    position: relative;
    z-index: 2;
    color: var(--ink-muted);
    font-family: var(--font-mono);
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.page-banner .breadcrumb-nav a {
    color: var(--blueprint);
}

/* ===== Sheet Section Styling ===== */
.sheet-section {
    padding: var(--section-py) 0;
    position: relative;
    border-bottom: 1px solid var(--concrete);
}

.bg-paper {
    background: var(--paper-light);
}

.sheet-header {
    margin-bottom: 3.5rem;
}

.sheet-ref {
    font-family: var(--font-mono);
    font-size: 0.78rem;
    font-weight: 600;
    color: var(--blueprint);
    letter-spacing: 1.5px;
    text-transform: uppercase;
    margin-bottom: 0.5rem;
    display: inline-block;
    background: rgba(43, 76, 126, 0.08);
    padding: 0.2rem 0.6rem;
    border-left: 2px solid var(--blueprint);
}

.sheet-header h2 {
    font-size: clamp(1.8rem, 4vw, 2.5rem);
    margin-bottom: 0.5rem;
}

.sheet-sub {
    color: var(--ink-muted);
    font-size: 1.05rem;
}

/* ===== Vision Quotes Section ===== */
.arch-quote-block {
    background: #FFF;
    border: 1px solid var(--concrete);
    padding: 1.75rem;
    border-radius: 0px;
    height: 100%;
    display: flex;
    gap: 1.25rem;
    transition: border-color 200ms ease, transform 200ms ease;
    position: relative;
}

/* Small drafting crosshair tick marks on hover */
.arch-quote-block::before, .arch-quote-block::after {
    content: '';
    position: absolute;
    width: 6px;
    height: 6px;
    border: 1px solid var(--concrete);
    opacity: 0;
    transition: opacity 200ms ease;
}
.arch-quote-block::before { top: -3px; left: -3px; border-right: 0; border-bottom: 0; }
.arch-quote-block::after { bottom: -3px; right: -3px; border-left: 0; border-top: 0; }

.arch-quote-block:hover {
    border-color: var(--blueprint);
    transform: translateY(-2px);
}
.arch-quote-block:hover::before, .arch-quote-block:hover::after {
    opacity: 1;
    border-color: var(--blueprint);
}

.arch-quote-block .quote-number {
    font-family: var(--font-mono);
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--blueprint);
    opacity: 0.6;
    flex-shrink: 0;
}

.arch-quote-block h4 {
    font-size: 1.1rem;
    margin-bottom: 0.5rem;
}

.arch-quote-block p {
    color: var(--ink-muted);
    font-size: 0.925rem;
    margin: 0;
    line-height: 1.65;
}

/* ===== Facilities Schedule / Legend Table ===== */
.facilities-schedule-table {
    border: 1px solid var(--concrete);
    background: #FFF;
    border-radius: 0px;
    overflow: hidden;
}

.schedule-head {
    background: var(--ink);
    color: #FFF;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    letter-spacing: 1px;
    padding: 0.85rem 1.25rem;
    border-bottom: 1px solid var(--concrete);
}

.schedule-row {
    padding: 1.1rem 1.25rem;
    border-bottom: 1px solid var(--concrete-light);
    transition: background 150ms ease;
}

.schedule-row:last-child {
    border-bottom: none;
}

.schedule-row:hover {
    background: rgba(43, 76, 126, 0.04);
}

.schedule-row .item-code {
    font-family: var(--font-mono);
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--blueprint);
}

.schedule-row .item-title {
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 1rem;
    color: var(--ink);
}

.schedule-row .item-desc {
    color: var(--ink-muted);
    font-size: 0.9rem;
}

.font-line-icon {
    color: var(--blueprint);
    font-size: 0.95rem;
}

/* ===== Contact Section (Structured Drawing Block) ===== */
.contact-cta {
    background: var(--ink);
    color: #FFF;
    padding: 4rem 0;
    border-top: 1px solid var(--concrete);
}

.contact-structured-block {
    border: 1px solid rgba(255, 255, 255, 0.15);
    background: rgba(255, 255, 255, 0.02);
    padding: 2rem;
}

.contact-item {
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    padding-bottom: 1.5rem;
    margin-bottom: 1.5rem;
}

.contact-item:last-child {
    border-bottom: none;
    padding-bottom: 0;
    margin-bottom: 0;
}

.contact-item .label {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--concrete);
    letter-spacing: 1px;
    margin-bottom: 0.25rem;
}

.contact-item .value {
    font-family: var(--font-heading);
    font-size: 1.25rem;
    color: #FFF;
    margin-bottom: 0.75rem;
}

/* ===== Footer ===== */
.site-footer {
    background: #111210;
    padding: 2rem 0;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--concrete);
}

.footer-brand {
    display: flex;
    align-items: center;
    color: #FFF;
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 0.95rem;
    margin-bottom: 0.25rem;
}

.footer-copy {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: rgba(255, 255, 255, 0.5);
    margin: 0;
}

.social-links {
    display: flex;
    gap: 0.5rem;
    justify-content: flex-end;
}

.social-links a {
    width: 38px;
    height: 38px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 2px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: rgba(255, 255, 255, 0.7);
    transition: all 150ms ease;
}

.social-links a:hover {
    background: #FFF;
    color: var(--ink);
    border-color: #FFF;
}

/* ===== Cards on Inner Pages (Faculty, Trustees, Events, News) ===== */
.trustee-card, .faculty-card, .event-card, .news-card {
    background: #FFF;
    border: 1px solid var(--concrete);
    border-radius: 0px;
    overflow: hidden;
    transition: transform 200ms ease, border-color 200ms ease;
    height: 100%;
    position: relative;
}

.event-card, .news-card {
    display: flex;
    flex-direction: column;
}

.trustee-card:hover, .faculty-card:hover, .event-card:hover, .news-card:hover {
    transform: translateY(-4px);
    border-color: var(--blueprint);
}

.trustee-card .card-img-wrap, .faculty-card .card-img-wrap {
    position: relative;
    padding-top: 110%;
    overflow: hidden;
    background: var(--paper);
    border-bottom: 1px solid var(--concrete);
}

.event-card .card-img-wrap {
    position: relative;
    padding-top: 65%;
    overflow: hidden;
    background: var(--paper);
    border-bottom: 1px solid var(--concrete);
}

.trustee-card .card-img-wrap img, .faculty-card .card-img-wrap img, .event-card .card-img-wrap img {
    position: absolute;
    top: 0; left: 0; width: 100%; height: 100%;
    object-fit: cover;
    object-position: top;
    filter: grayscale(10%) contrast(1.02);
}

.trustee-card .card-body, .faculty-card .card-body, .event-card .card-body, .news-card .card-body {
    padding: 1.5rem;
    background: #FFF;
}

.trustee-card .card-body h5, .faculty-card .card-body h5, .event-card .card-body h5, .news-card .card-body h5 {
    font-size: 1.1rem;
    margin-bottom: 0.4rem;
}

.trustee-card .card-body .designation, .faculty-card .card-body .designation {
    font-family: var(--font-mono);
    color: var(--blueprint);
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.faculty-card .card-body .meta {
    font-size: 0.825rem;
    color: var(--ink-muted);
    margin-top: 0.75rem;
}

.faculty-card .card-body .meta p {
    margin-bottom: 0.25rem;
}

/* ===== Notices & Circulars List (Technical Catalog Style) ===== */
.notice-item {
    background: #FFF;
    border: 1px solid var(--concrete);
    border-radius: 0px;
    padding: 1.25rem 1.5rem;
    margin-bottom: 0.85rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1.5rem;
    transition: border-color 200ms ease, background 200ms ease;
}

.notice-item:hover {
    border-color: var(--blueprint);
    background: rgba(43, 76, 126, 0.02);
}

.notice-item .notice-info h6 {
    font-size: 1rem;
    margin-bottom: 0.35rem;
}

.notice-item .notice-date {
    font-family: var(--font-mono);
    font-size: 0.78rem;
    color: var(--ink-muted);
    text-transform: uppercase;
}

/* ===== Photo Gallery & Student Works Grid (Hairline Framed Layout) ===== */
.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1.5rem;
}

.gallery-item {
    border: 1px solid var(--concrete);
    background: #FFF;
    border-radius: 0px;
    overflow: hidden;
    position: relative;
    aspect-ratio: 4/3;
    transition: border-color 200ms ease;
}

.gallery-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    filter: grayscale(15%);
    transition: transform 300ms ease;
}

.gallery-item:hover {
    border-color: var(--blueprint);
}

.gallery-item:hover img {
    transform: scale(1.03);
}

.gallery-item .overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 1rem;
    background: rgba(28, 29, 27, 0.95);
    border-top: 1px solid var(--concrete);
    color: #FFF;
    transform: translateY(100%);
    transition: transform 250ms ease;
}

.gallery-item:hover .overlay {
    transform: translateY(0);
}

.gallery-item .overlay h6 {
    font-family: var(--font-mono);
    font-size: 0.85rem;
    color: #FFF;
    margin: 0;
    letter-spacing: 0.5px;
}

/* ===== Stats & Infographics (Drafted Blueprint Cards) ===== */
.stat-card {
    background: #FFF;
    border: 1px solid var(--concrete);
    border-radius: 0px;
    padding: 1.75rem;
    text-align: center;
    height: 100%;
    position: relative;
}

.stat-card .stat-number {
    font-family: var(--font-heading);
    font-size: 2.8rem;
    font-weight: 800;
    color: var(--blueprint);
    line-height: 1;
}

.stat-card .stat-label {
    font-family: var(--font-mono);
    font-size: 0.78rem;
    color: var(--ink-muted);
    text-transform: uppercase;
    margin-top: 0.5rem;
    letter-spacing: 0.5px;
}

/* ===== Comprehensive Mobile & Tablet Responsiveness Rules ===== */
@media (max-width: 768px) {
    :root {
        --section-py: 3rem;
    }
    
    body::before {
        display: none; /* Hide margin scale bar on mobile for extra width */
    }

    .page-banner {
        padding: 3rem 0 2rem;
    }

    .page-banner h1 {
        font-size: 1.8rem;
    }

    .sheet-header h2 {
        font-size: 1.5rem;
    }

    .work-tabs {
        flex-wrap: wrap;
        gap: 6px;
    }

    .work-tab-btn {
        padding: 0.6rem 1rem;
        font-size: 0.8rem;
        flex: 1 1 auto;
        text-align: center;
    }

    .gallery-grid {
        grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
        gap: 0.75rem;
    }

    .facilities-schedule-table {
        border-radius: 8px;
        overflow: hidden;
    }

    .schedule-row {
        flex-direction: column;
        align-items: flex-start !important;
        padding: 0.85rem 1rem;
        gap: 4px;
    }

    .schedule-row .item-code {
        font-size: 0.75rem;
    }

    .schedule-row .item-title {
        font-weight: 700;
        font-size: 0.95rem;
    }

    .schedule-row .item-desc {
        font-size: 0.85rem;
        color: #475569;
    }

    /* Modal Adjustments for Mobile */
    .modal-dialog {
        margin: 0.5rem;
    }
}

@media (max-width: 576px) {
    .container {
        padding-left: 15px;
        padding-right: 15px;
    }

    .stat-card {
        padding: 1.25rem 1rem;
    }

    .stat-card .stat-number {
        font-size: 2.2rem;
    }

    /* Mobile Offcanvas Drawer Styling */
    .offcanvas-body .nav-link {
        font-size: 1.1rem;
        padding: 0.75rem 0;
        border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    }
}