/* ================================================================
   ACADEMIC PROFESSIONAL PORTFOLIO — Global Design System
   Palette: Deep Ink Navy • Warm White • Academic Gold • Slate Gray
   ================================================================ */

:root {
    --navy: #0d1b2a;
    /* deep ink navy — primary */
    --navy-mid: #1b2d42;
    /* slightly lighter navy */
    --navy-soft: #2c4a6e;
    /* accent navy for hover states */
    --gold: #c9a84c;
    /* academic gold accent */
    --gold-light: #e8c97e;
    /* lighter gold */
    --slate: #4a5568;
    /* body text */
    --slate-light: #718096;
    /* muted text */
    --border: #d1d9e0;
    /* subtle border */
    --bg: #f7f8fa;
    /* off-white page bg */
    --white: #ffffff;
    --shadow-sm: 0 1px 3px rgba(13, 27, 42, .08), 0 1px 2px rgba(13, 27, 42, .06);
    --shadow-md: 0 4px 12px rgba(13, 27, 42, .10), 0 2px 4px rgba(13, 27, 42, .06);
    --shadow-lg: 0 12px 28px rgba(13, 27, 42, .14), 0 4px 8px rgba(13, 27, 42, .08);
}

/* ─── Reset & Base ─────────────────────────────────── */
*,
*::before,
*::after {
    box-sizing: border-box;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background-color: var(--bg);
    color: var(--slate);
    line-height: 1.7;
    font-size: 1rem;
    -webkit-font-smoothing: antialiased;
}

h1,
h2,
h3,
h4,
h5,
h6 {
    font-family: 'Inter', sans-serif;
    color: var(--navy);
    font-weight: 700;
    line-height: 1.25;
    letter-spacing: -0.02em;
}

a {
    color: var(--navy-soft);
    text-decoration: none;
}

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

/* ─── Page Background ──────────────────────────────── */
.academic-background {
    position: fixed;
    inset: 0;
    z-index: -1;
    background-color: var(--bg);
    background-image:
        linear-gradient(180deg, rgba(13, 27, 42, .02) 0%, transparent 60%);
}

/* ─── Topbar / Navbar ──────────────────────────────── */
.navbar-glass {
    background: rgba(255, 255, 255, 0.97);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border);
    padding: 0;
    height: 64px;
}

.navbar-brand {
    height: 64px;
    display: flex;
    align-items: center;
    padding: 0 1.5rem 0 0;
    gap: 0.75rem;
    border-right: 1px solid var(--border);
    margin-right: 1.5rem;
}

.navbar-brand span {
    color: var(--navy);
    font-weight: 700;
    font-size: 1rem;
    letter-spacing: -0.01em;
}

.navbar-brand,
.navbar-brand:hover,
.navbar-brand:focus,
.navbar-brand:active {
    opacity: 1 !important;
    color: var(--navy) !important;
    text-decoration: none !important;
    transform: none !important;
    transition: none !important;
}

.nav-link {
    color: var(--slate) !important;
    font-size: 0.875rem;
    font-weight: 500;
    padding: 0.4rem 0.875rem !important;
    border-radius: 6px;
    transition: background 0.15s ease, color 0.15s ease;
}

.nav-link:hover {
    background: #f0f4f8;
    color: var(--navy) !important;
}

/* Account dropdown trigger */
.account-trigger {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--navy) !important;
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 0.4rem 0.875rem;
    background: var(--white);
    transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.account-trigger:hover {
    border-color: var(--navy-soft);
    box-shadow: var(--shadow-sm);
    color: var(--navy) !important;
}

.dropdown-menu {
    border: 1px solid var(--border);
    border-radius: 10px;
    box-shadow: var(--shadow-lg);
    padding: 0.5rem;
    min-width: 200px;
    background: var(--white);
}

.dropdown-item {
    border-radius: 6px;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--slate);
    padding: 0.6rem 0.875rem;
    transition: background 0.15s ease;
}

.dropdown-item:hover {
    background: #f0f4f8;
    color: var(--navy);
}

/* ─── Cards ────────────────────────────────────────── */
.portfolio-glass-card {
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 2rem;
    box-shadow: var(--shadow-sm);
    transition: border-color 0.2s ease;
    transform: none !important;
}

.portfolio-glass-card:hover {
    border-color: var(--navy-soft);
    box-shadow: var(--shadow-sm);
    transform: none !important;
}

.portfolio-glass-card:hover {
    border-color: var(--navy-soft);
    box-shadow: var(--shadow-sm);
    /* Keep same shadow to prevent jumping */
    transform: none !important;
}

/* ─── Buttons ──────────────────────────────────────── */
.btn-primary-custom {
    background: var(--navy) !important;
    color: var(--white) !important;
    border: 1px solid var(--navy) !important;
    border-radius: 8px;
    padding: 0.65rem 1.5rem;
    font-weight: 600;
    font-size: 0.9rem;
    transition: none !important;
    transform: none !important;
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    box-shadow: none !important;
}

.btn-primary-custom:hover,
.btn-primary-custom:focus,
.btn-primary-custom:active,
.btn-primary-custom:focus-visible {
    background: var(--navy-mid) !important;
    border-color: var(--navy-mid) !important;
    color: var(--white) !important;
    box-shadow: none !important;
    transform: none !important;
    outline: none !important;
    opacity: 1;
}

.btn-outline-custom {
    background: transparent !important;
    border: 1px solid var(--border) !important;
    color: var(--navy) !important;
    border-radius: 8px;
    padding: 0.65rem 1.5rem;
    font-weight: 600;
    font-size: 0.9rem;
    transition: none !important;
    transform: none !important;
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    box-shadow: none !important;
}

.btn-outline-custom:hover,
.btn-outline-custom:focus,
.btn-outline-custom:active,
.btn-outline-custom:focus-visible {
    background: #f0f4f8 !important;
    border-color: var(--navy) !important;
    color: var(--navy) !important;
    box-shadow: none !important;
    transform: none !important;
    outline: none !important;
    opacity: 1;
}

/* Stable Header Button */
.btn-ghost-white {
    background: transparent !important;
    border: 1px solid rgba(255, 255, 255, 0.3) !important;
    color: var(--white) !important;
    transition: none !important;
    transform: none !important;
}

.btn-ghost-white:hover,
.btn-ghost-white:focus {
    background: rgba(255, 255, 255, 0.1) !important;
    border-color: rgba(255, 255, 255, 0.5) !important;
    color: var(--white) !important;
    transform: none !important;
    box-shadow: none !important;
}

/* ─── Hero Section ─────────────────────────────────── */
.hero-section {
    padding-top: 4rem;
    padding-bottom: 4rem;
    min-height: 100vh;
    display: flex;
    align-items: center;
}

.hero-title {
    font-size: clamp(2.5rem, 5vw, 3.75rem);
    font-weight: 800;
    letter-spacing: -0.03em;
    line-height: 1.1;
    color: var(--navy);
}

.hero-title .accent {
    color: var(--navy-soft);
}

.text-primary-gradient {
    color: var(--navy-soft);
}

/* Academic divider line */
.academic-divider {
    width: 40px;
    height: 3px;
    background: var(--gold);
    border-radius: 2px;
    margin-bottom: 1.5rem;
}

/* ─── Profile Image ─────────────────────────────────── */
.profile-img-hero {
    border-radius: 12px;
    border: 3px solid var(--white);
    box-shadow: var(--shadow-lg);
    width: 360px;
    height: 400px;
    object-fit: cover;
    display: block;
}

/* ─── Section Badges ─────────────────────────────────── */
.section-badge {
    display: inline-block;
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--gold);
    background: rgba(201, 168, 76, .1);
    border: 1px solid rgba(201, 168, 76, .25);
    border-radius: 4px;
    padding: 0.25rem 0.75rem;
    margin-bottom: 1rem;
}

/* ─── Nav Pills (User Profile Tabs) ──────────────────── */
.nav-pills-custom .nav-link {
    border-radius: 6px;
    color: var(--slate);
    font-size: 0.875rem;
    font-weight: 500;
    padding: 0.5rem 1rem;
    transition: background 0.15s ease, color 0.15s ease;
}

.nav-pills-custom .nav-link:hover {
    background: #f0f4f8;
    color: var(--navy);
}

.nav-pills-custom .nav-link.active {
    background: var(--navy) !important;
    color: var(--white) !important;
    box-shadow: none;
}

/* ─── Page Header Strip ───────────────────────────────── */
.page-header {
    background: var(--navy);
    color: var(--white);
    padding: 3rem 0 2.5rem;
    margin-bottom: 2.5rem;
}

.page-header h1,
.page-header h2 {
    color: var(--white);
}

.page-header .lead {
    color: rgba(255, 255, 255, 0.65);
}

/* ─── Tables ──────────────────────────────────────────── */
.table thead th {
    color: var(--slate-light);
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    border-bottom: 2px solid var(--border);
    background: transparent;
    padding: 0.75rem 1rem;
}

.table tbody td {
    padding: 0.875rem 1rem;
    color: var(--slate);
    border-bottom: 1px solid #f0f4f8;
    vertical-align: middle;
}

.table-hover tbody tr:hover td {
    background: #f8fafc;
}

/* ─── Forms ───────────────────────────────────────────── */
.form-control,
.form-select {
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 0.65rem 0.875rem;
    color: var(--navy);
    font-size: 0.9rem;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
    background: var(--white);
}

.form-control:focus,
.form-select:focus {
    border-color: var(--navy-soft);
    box-shadow: 0 0 0 3px rgba(44, 74, 110, .1);
    outline: none;
}

.form-label {
    font-size: 0.825rem;
    font-weight: 600;
    color: var(--navy);
    margin-bottom: 0.4rem;
    letter-spacing: 0.01em;
}

/* ─── Preloader ───────────────────────────────────────── */
.preloader-overlay {
    position: fixed;
    inset: 0;
    background: var(--white);
    z-index: 9999;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 1rem;
    transition: opacity 0.4s ease;
}

.preloader-overlay.hidden {
    opacity: 0;
    pointer-events: none;
}

.spinner-logo i {
    color: var(--navy);
    opacity: 0;
    animation: fadeInOut 1.4s ease-in-out infinite;
}

@keyframes fadeInOut {

    0%,
    100% {
        opacity: 0.3;
    }

    50% {
        opacity: 1;
    }
}

/* ─── Utility ─────────────────────────────────────────── */
.text-navy {
    color: var(--navy);
}

.text-gold {
    color: var(--gold);
}

.bg-navy {
    background: var(--navy);
}

.stat-number {
    font-size: 2rem;
    font-weight: 800;
    color: var(--navy);
    line-height: 1;
}

.stat-label {
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--slate-light);
}

/* Sidebar info rows */
.info-row {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.6rem 0;
    border-bottom: 1px solid #f0f4f8;
    font-size: 0.875rem;
    color: var(--slate);
}

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

.info-row i {
    color: var(--slate-light);
    width: 18px;
    flex-shrink: 0;
}

/* Gold accent bar on cards */
.card-gold-bar {
    display: block;
    width: 36px;
    height: 3px;
    background: var(--gold);
    border-radius: 2px;
    margin-bottom: 1.25rem;
}

/* ─── Landing Expansion Sections ──────────────────────── */

/* Features Section */
.feature-card {
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 2.5rem 2rem;
    height: 100%;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
    text-align: center;
}

.feature-card:hover {
    border-color: var(--navy-soft);
    box-shadow: var(--shadow-md);
}

.feature-icon-wrapper {
    width: 64px;
    height: 64px;
    background: rgba(13, 27, 42, 0.04);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    color: var(--navy);
    font-size: 1.75rem;
}

/* How It Works Section */
.step-item {
    position: relative;
    text-align: center;
}

.step-number {
    width: 40px;
    height: 40px;
    background: var(--navy);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    margin: 0 auto 1.5rem;
    z-index: 2;
    position: relative;
    box-shadow: 0 0 0 8px var(--bg);
}

.step-item::after {
    content: '';
    position: absolute;
    top: 20px;
    left: 50%;
    width: 100%;
    height: 2px;
    background: var(--border);
    z-index: 1;
}

.step-item:last-child::after {
    display: none;
}

/* Landing Statistics */
.landing-stats-section {
    background: var(--navy);
    color: var(--white);
    padding: 5rem 0;
}

.landing-stat-item h3 {
    color: var(--white) !important;
    font-size: 3rem;
    font-weight: 800;
    margin-bottom: 0.5rem;
}

.landing-stat-item p {
    color: rgba(255, 255, 255, 0.7);
    text-transform: uppercase;
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 0.1em;
}

/* Redesigned Footer */
.footer-enhanced {
    background: var(--navy);
    color: rgba(255, 255, 255, 0.7);
    padding: 5rem 0 2rem;
    margin-top: 0;
    border-top: none;
}

.footer-logo {
    color: var(--white);
    font-weight: 800;
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    text-decoration: none !important;
}

.footer-logo:hover {
    color: var(--white);
}

.footer-link {
    color: rgba(255, 255, 255, 0.6);
    text-decoration: none;
    font-size: 0.9rem;
    transition: color 0.15s ease;
    display: block;
    margin-bottom: 0.75rem;
}

.footer-link:hover {
    color: var(--white);
}

.social-links {
    display: flex;
    gap: 1rem;
}

.social-link {
    width: 36px;
    height: 36px;
    background: rgba(255, 255, 255, 0.06);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    transition: background 0.15s ease;
}

.social-link:hover {
    background: rgba(255, 255, 255, 0.15);
    color: var(--white);
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    margin-top: 4rem;
    padding-top: 2rem;
    font-size: 0.85rem;
}