/* ============================================
   LTSEC \u2014 Black & White Modern Theme
   ============================================ */

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

:root {
    --black: #000000;
    --near-black: #0a0a0a;
    --dark: #111111;
    --dark-gray: #1a1a1a;
    --mid-gray: #2a2a2a;
    --gray: #888888;
    --light-gray: #cccccc;
    --off-white: #f0f0f0;
    --white: #ffffff;
    --radius: 8px;
    --radius-lg: 16px;
    --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --font: 'Segoe UI', system-ui, -apple-system, sans-serif;
    --font-mono: 'SF Mono', 'Fira Code', 'Consolas', monospace;
}

/* ============================================
   Custom Scrollbar
   ============================================ */

::-webkit-scrollbar {
    width: 6px;
}

::-webkit-scrollbar-track {
    background: var(--near-black);
}

::-webkit-scrollbar-thumb {
    background: var(--mid-gray);
    border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--gray);
}

* {
    scrollbar-width: thin;
    scrollbar-color: var(--mid-gray) var(--near-black);
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font);
    background: var(--near-black);
    color: var(--off-white);
    line-height: 1.6;
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
}

a {
    color: var(--white);
    text-decoration: none;
    transition: opacity var(--transition);
}

a:hover {
    opacity: 0.7;
}

/* ============================================
   Navigation Overlay (slide-out menu)
   ============================================ */

.nav-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(4px);
    z-index: 998;
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition), visibility var(--transition);
}

.nav-overlay.open {
    opacity: 1;
    visibility: visible;
}

.side-nav {
    position: fixed;
    top: 0;
    left: 0;
    width: 300px;
    height: 100vh;
    background: var(--dark);
    border-right: 1px solid var(--mid-gray);
    z-index: 999;
    transform: translateX(-100%);
    transition: transform var(--transition);
    display: flex;
    flex-direction: column;
    padding: 2rem 1.5rem;
}

.side-nav.open {
    transform: translateX(0);
}

.nav-close {
    position: absolute;
    top: 1.25rem;
    right: 1.25rem;
    background: none;
    border: none;
    color: var(--white);
    font-size: 2rem;
    cursor: pointer;
    line-height: 1;
    transition: opacity var(--transition);
}

.nav-close:hover {
    opacity: 0.5;
}

.nav-brand {
    margin-bottom: 3rem;
    padding-bottom: 1.5rem;
    border-bottom: 1px solid var(--mid-gray);
}

.nav-logo {
    font-size: 1.75rem;
    font-weight: 700;
    letter-spacing: 0.15em;
    color: var(--white);
}

.nav-links {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.nav-links a {
    display: block;
    padding: 0.875rem 1rem;
    border-radius: var(--radius);
    font-size: 1rem;
    font-weight: 500;
    letter-spacing: 0.03em;
    transition: background var(--transition), color var(--transition);
}

.nav-links a:hover {
    background: var(--mid-gray);
    opacity: 1;
}

/* ============================================
   Top Bar
   ============================================ */

.top-bar {
    position: sticky;
    top: 0;
    z-index: 100;
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem 2rem;
    background: var(--near-black);
    border-bottom: 1px solid var(--dark-gray);
    backdrop-filter: blur(12px);
}

.menu-btn {
    display: flex;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
}

.menu-btn span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--white);
    border-radius: 2px;
    transition: var(--transition);
}

.menu-btn:hover span {
    background: var(--gray);
}

.top-brand {
    font-size: 1.25rem;
    font-weight: 700;
    letter-spacing: 0.15em;
    color: var(--white);
}

/* ============================================
   Banner Section
   ============================================ */

.banner-section {
    text-align: center;
    padding: 4rem 2rem 3rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
}

.banner-title {
    font-size: clamp(4rem, 14vw, 10rem);
    font-weight: 900;
    letter-spacing: 0.2em;
    margin-left: 0.2em; /* compensate for trailing letter-spacing to visually center */
    color: var(--white);
    line-height: 1;
    text-transform: uppercase;
}

.banner-subtitle {
    font-size: clamp(0.9rem, 2.5vw, 1.25rem);
    font-weight: 400;
    letter-spacing: 0.3em;
    text-transform: uppercase;
    color: var(--light-gray);
}

.banner-est {
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.25em;
    text-transform: uppercase;
    color: var(--gray);
    margin-top: 0.25rem;
}

/* ============================================
   Hero Section
   ============================================ */

.hero-section {
    padding: 2rem;
}

.hero-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
    max-width: 1200px;
    margin: 0 auto;
}

.hero-card {
    position: relative;
    overflow: hidden;
    border-radius: var(--radius-lg);
    aspect-ratio: 16 / 10;
    background: var(--dark-gray);
}

.hero-img {
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    transition: transform 0.6s ease;
}

.hero-card:hover .hero-img {
    transform: scale(1.05);
}

.hero-img-fallback {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    font-weight: 700;
    letter-spacing: 0.2em;
    color: var(--mid-gray);
    background: linear-gradient(135deg, var(--dark) 0%, var(--dark-gray) 100%);
}

/* ============================================
   Section Divider
   ============================================ */

.section-divider {
    display: flex;
    align-items: center;
    max-width: 1200px;
    margin: 1rem auto 0;
    padding: 0 2rem;
    gap: 1.5rem;
}

.section-divider::before,
.section-divider::after {
    content: '';
    flex: 1;
    height: 1px;
    background: var(--mid-gray);
}

.divider-text {
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 0.25em;
    text-transform: uppercase;
    color: var(--gray);
    white-space: nowrap;
}

/* ============================================
   Projects Section
   ============================================ */

.projects-section {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem;
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.project-card {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    background: var(--dark);
    border: 1px solid var(--dark-gray);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: border-color var(--transition);
}

.project-card:hover {
    border-color: var(--mid-gray);
}

.project-right {
    direction: rtl;
}

.project-right > * {
    direction: ltr;
}

.project-img {
    min-height: 280px;
    background-size: cover;
    background-position: center;
    position: relative;
}

.project-body {
    padding: 2.5rem 2rem;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.project-title {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--white);
    letter-spacing: 0.02em;
}

.project-desc {
    font-size: 1rem;
    line-height: 1.7;
    color: var(--light-gray);
}

/* ============================================
   Officers Section
   ============================================ */

.officers-section {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem;
}

.officers-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
}

.officer-card {
    background: var(--dark);
    border: 1px solid var(--dark-gray);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    text-align: center;
    transition: border-color var(--transition), transform var(--transition);
}

.officer-card:hover {
    border-color: var(--mid-gray);
    transform: translateY(-4px);
}

.officer-img {
    width: 100px;
    height: 100px;
    border-radius: 50%;
    margin: 0 auto 1rem;
    background-size: cover;
    background-position: center;
    background-color: var(--mid-gray);
    overflow: hidden;
}

.officer-img-fallback {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    font-weight: 700;
    color: var(--gray);
    background: linear-gradient(135deg, var(--dark-gray) 0%, var(--mid-gray) 100%);
}

.officer-name {
    font-size: 1rem;
    font-weight: 600;
    color: var(--white);
    margin-bottom: 0.25rem;
}

.officer-role {
    font-size: 0.8rem;
    font-weight: 500;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--gray);
}

/* ============================================
   Login Section
   ============================================ */

.login-section {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: calc(100vh - 200px);
    padding: 2rem;
}

.login-card {
    width: 100%;
    max-width: 400px;
    background: var(--dark);
    border: 1px solid var(--dark-gray);
    border-radius: var(--radius-lg);
    padding: 3rem 2.5rem;
}

.login-title {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--white);
    margin-bottom: 0.25rem;
}

.login-subtitle {
    font-size: 0.875rem;
    color: var(--gray);
    margin-bottom: 2rem;
}

/* ============================================
   Forms
   ============================================ */

.form-group {
    margin-bottom: 1.25rem;
}

.form-group label {
    display: block;
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--gray);
    margin-bottom: 0.5rem;
}

.form-group input {
    width: 100%;
    padding: 0.75rem 1rem;
    background: var(--near-black);
    border: 1px solid var(--mid-gray);
    border-radius: var(--radius);
    color: var(--white);
    font-size: 1rem;
    font-family: var(--font);
    transition: border-color var(--transition);
}

.form-group input:focus {
    outline: none;
    border-color: var(--white);
}

.form-group input::placeholder {
    color: var(--gray);
}

/* ============================================
   Buttons
   ============================================ */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.75rem 1.5rem;
    border: 1px solid transparent;
    border-radius: var(--radius);
    font-size: 0.875rem;
    font-weight: 600;
    font-family: var(--font);
    letter-spacing: 0.05em;
    cursor: pointer;
    transition: all var(--transition);
    text-decoration: none;
}

.btn-primary {
    background: var(--white);
    color: var(--black);
    border-color: var(--white);
}

.btn-primary:hover {
    background: var(--off-white);
    opacity: 1;
}

.btn-full {
    width: 100%;
    margin-top: 0.5rem;
}

/* ============================================
   Flash Messages
   ============================================ */

.flash-container {
    max-width: 1200px;
    margin: 1rem auto;
    padding: 0 2rem;
}

.flash {
    padding: 0.875rem 1.25rem;
    border-radius: var(--radius);
    font-size: 0.875rem;
    margin-bottom: 0.5rem;
    border: 1px solid;
}

.flash-error {
    background: rgba(255, 60, 60, 0.1);
    border-color: rgba(255, 60, 60, 0.3);
    color: #ff6b6b;
}

.flash-success {
    background: rgba(60, 255, 60, 0.1);
    border-color: rgba(60, 255, 60, 0.3);
    color: #6bff6b;
}

/* ============================================
   Footer
   ============================================ */

.site-footer {
    text-align: center;
    padding: 3rem 2rem;
    border-top: 1px solid var(--dark-gray);
    margin-top: 4rem;
}

.site-footer p {
    font-size: 0.8rem;
    color: var(--gray);
    letter-spacing: 0.1em;
}

/* ============================================
   Responsive
   ============================================ */

@media (max-width: 900px) {
    .hero-grid {
        grid-template-columns: 1fr;
    }

    .project-card {
        grid-template-columns: 1fr;
    }

    .project-right {
        direction: ltr;
    }

    .project-img {
        min-height: 200px;
    }

    .officers-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 600px) {
    .top-bar {
        padding: 1rem;
    }

    .hero-section,
    .projects-section,
    .officers-section {
        padding: 1rem;
    }

    .section-divider {
        padding: 0 1rem;
    }

    .officers-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1rem;
    }

    .officer-card {
        padding: 1rem;
    }

    .project-body {
        padding: 1.5rem;
    }

    .login-card {
        padding: 2rem 1.5rem;
    }

    .side-nav {
        width: 85vw;
    }
}