/* EASA Alumni Connect Master Stylesheet */
:root {
    --primary-navy: #0F172A;
    --primary-blue: #1E3A8A;
    --accent-gold: #F59E0B;
    --accent-yellow: #FDB913;
    --gradient-gold: linear-gradient(135deg, #FDB913 0%, #D97706 100%);
    --gradient-navy: linear-gradient(135deg, #0F172A 0%, #1E3A8A 100%);
    --gradient-card: linear-gradient(145deg, #FFFFFF 0%, #F8FAFC 100%);
    --text-dark: #0F172A;
    --text-muted: #64748B;
    --bg-light: #F8FAFC;
    --shadow-sm: 0 4px 6px -1px rgba(15, 23, 42, 0.05), 0 2px 4px -1px rgba(15, 23, 42, 0.03);
    --shadow-md: 0 10px 25px -5px rgba(15, 23, 42, 0.08), 0 8px 10px -6px rgba(15, 23, 42, 0.04);
    --shadow-lg: 0 20px 35px -10px rgba(15, 23, 42, 0.12), 0 10px 15px -5px rgba(15, 23, 42, 0.06);
    --shadow-glow: 0 15px 30px -5px rgba(245, 158, 11, 0.35);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    color: var(--text-dark);
    background-color: #FFFFFF;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

main {
    flex: 1 0 auto;
}

/* ===============================
   BUTTONS
=============================== */
.btn-register,
.btn-nav-register {
    position: relative;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    background: linear-gradient(135deg, #FDB913 0%, #F59E0B 50%, #D97706 100%);
    color: #0F172A !important;
    font-weight: 800;
    font-size: 15px;
    letter-spacing: 0.5px;
    padding: 13px 32px;
    border-radius: 50px;
    text-decoration: none !important;
    box-shadow: 0 10px 25px -5px rgba(245, 158, 11, 0.45), 0 0 0 1px rgba(255, 255, 255, 0.25) inset;
    transition: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
    border: none;
    overflow: hidden;
    z-index: 1;
}

.btn-register::before,
.btn-nav-register::before {
    content: "";
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.4), transparent);
    transition: left 0.6s ease;
    z-index: 2;
}

.btn-register:hover::before,
.btn-nav-register:hover::before {
    left: 100%;
}

.btn-register:hover,
.btn-nav-register:hover {
    transform: translateY(-3px) scale(1.03);
    box-shadow: 0 18px 35px -5px rgba(245, 158, 11, 0.65), 0 0 0 1px rgba(255, 255, 255, 0.4) inset;
    color: #0F172A !important;
}

.btn-register:active,
.btn-nav-register:active {
    transform: translateY(-1px) scale(0.99);
    box-shadow: 0 8px 20px -5px rgba(245, 158, 11, 0.4);
}

.btn-nav-register {
    padding: 10px 26px;
    font-size: 14px;
    margin-left: 12px;
}

.btn-outline-custom {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border: 2px solid var(--primary-navy);
    color: var(--primary-navy) !important;
    font-weight: 700;
    font-size: 15px;
    padding: 12px 30px;
    border-radius: 50px;
    text-decoration: none !important;
    margin-left: 12px;
    transition: all 0.3s ease;
    background: transparent;
}

.btn-outline-custom:hover {
    background: var(--primary-navy);
    color: #FFFFFF !important;
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
}

.btn-outline-gold {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border: 2px solid var(--accent-gold);
    color: #FFFFFF !important;
    font-weight: 700;
    font-size: 15px;
    padding: 12px 30px;
    border-radius: 50px;
    text-decoration: none !important;
    transition: all 0.3s ease;
    background: transparent;
}

.btn-outline-gold:hover {
    background: var(--accent-gold);
    color: #0F172A !important;
    transform: translateY(-3px);
    box-shadow: 0 10px 20px rgba(245, 158, 11, 0.3);
}

/* ===============================
   PAGE BANNER / HERO
=============================== */
.page-banner {
    background: var(--gradient-navy);
    color: #FFFFFF;
    padding: 70px 0 60px;
    position: relative;
    overflow: hidden;
    margin-bottom: 0;
}

.page-banner::before {
    content: "";
    position: absolute;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(245, 158, 11, 0.15) 0%, rgba(0, 0, 0, 0) 70%);
    right: -100px;
    top: -100px;
    pointer-events: none;
}

.page-banner::after {
    content: "";
    position: absolute;
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, rgba(30, 58, 138, 0.3) 0%, rgba(0, 0, 0, 0) 70%);
    left: -50px;
    bottom: -50px;
    pointer-events: none;
}

.page-banner h1 {
    font-size: 2.8rem;
    font-weight: 800;
    margin-bottom: 12px;
    letter-spacing: -0.5px;
}

.page-banner p {
    font-size: 1.15rem;
    color: #CBD5E1;
    max-width: 650px;
    margin-bottom: 15px;
}

.breadcrumb-custom {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    color: #94A3B8;
    margin-top: 10px;
}

.breadcrumb-custom a {
    color: var(--accent-yellow);
    text-decoration: none;
    font-weight: 600;
}

.breadcrumb-custom a:hover {
    text-decoration: underline;
}

/* ===============================
   HERO SECTION (HOME)
=============================== */
.hero {
    position: relative;
    padding: 90px 0 110px;
    background: linear-gradient(180deg, #F1F5F9 0%, #FFFFFF 100%);
    overflow: hidden;
}

.hero::before {
    content: "";
    position: absolute;
    width: 550px;
    height: 550px;
    background: radial-gradient(circle, rgba(245, 158, 11, 0.12) 0%, rgba(255, 255, 255, 0) 70%);
    border-radius: 50%;
    right: -100px;
    top: -100px;
    pointer-events: none;
}

.hero::after {
    content: "";
    position: absolute;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(30, 58, 138, 0.08) 0%, rgba(255, 255, 255, 0) 70%);
    left: -100px;
    bottom: -50px;
    border-radius: 50%;
    pointer-events: none;
}

.hero .badge {
    background: rgba(245, 158, 11, 0.15) !important;
    color: #B45309 !important;
    border: 1px solid rgba(245, 158, 11, 0.3);
    border-radius: 30px;
    font-weight: 700;
    font-size: 13px;
    letter-spacing: 1.5px;
    padding: 8px 20px !important;
    display: inline-block;
    box-shadow: 0 4px 12px rgba(245, 158, 11, 0.1);
}

.hero h1 {
    font-size: 3.2rem;
    font-weight: 800;
    line-height: 1.2;
    color: var(--primary-navy);
    margin-top: 15px;
    margin-bottom: 20px;
    letter-spacing: -0.5px;
}

.hero p {
    font-size: 1.15rem;
    color: var(--text-muted);
    line-height: 1.7;
    max-width: 580px;
}

.hero-image {
    max-width: 440px;
    border-radius: 24px;
    box-shadow: var(--shadow-lg);
    animation: float 4s ease-in-out infinite;
}

@keyframes float {
    0% { transform: translateY(0px); }
    50% { transform: translateY(-16px); }
    100% { transform: translateY(0px); }
}

/* ===============================
   STATISTICS SECTION
=============================== */
.stats {
    padding: 60px 0;
    background: var(--gradient-navy);
    position: relative;
    z-index: 10;
}

.stat-box {
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid rgba(255, 255, 255, 0.12);
    padding: 35px 25px;
    border-radius: 20px;
    text-align: center;
    transition: all 0.4s ease;
    height: 100%;
}

.stat-box:hover {
    transform: translateY(-8px);
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(245, 158, 11, 0.5);
    box-shadow: 0 20px 35px rgba(0, 0, 0, 0.3);
}

.counter {
    font-size: 46px;
    font-weight: 800;
    background: linear-gradient(135deg, #FDB913, #F59E0B);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 6px;
    letter-spacing: -1px;
}

.stat-box p {
    color: #94A3B8;
    font-size: 15px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin: 0;
}

/* ===============================
   SECTION TITLES & HEADINGS
=============================== */
.section-title {
    text-align: center;
    margin-bottom: 50px;
}

.section-title.text-start {
    text-align: left !important;
}

.section-title h2 {
    font-size: 2.4rem;
    font-weight: 800;
    color: var(--primary-navy);
    position: relative;
    display: inline-block;
    padding-bottom: 14px;
    margin-bottom: 12px;
    letter-spacing: -0.5px;
}

.section-title h2::after {
    content: "";
    width: 70px;
    height: 4px;
    background: var(--gradient-gold);
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    bottom: 0;
    border-radius: 4px;
}

.section-title.text-start h2::after {
    left: 0;
    transform: none;
}

.section-title p {
    color: var(--text-muted);
    font-size: 1.1rem;
    font-weight: 500;
    margin-top: 5px;
}

/* ===============================
   VISION & MISSION
=============================== */
.vision-mission {
    padding: 90px 0;
    background: var(--bg-light);
}

.vm-card {
    background: #FFFFFF;
    padding: 45px 35px;
    border-radius: 24px;
    border: 1px solid #E2E8F0;
    box-shadow: var(--shadow-md);
    height: 100%;
    transition: all 0.4s ease;
}

.vm-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
    border-color: rgba(245, 158, 11, 0.4);
}

.vm-icon {
    width: 75px;
    height: 75px;
    background: var(--gradient-gold);
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 25px;
    box-shadow: var(--shadow-glow);
}

.vm-icon i {
    font-size: 32px;
    color: #0F172A;
}

.vm-card h3 {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--primary-navy);
    margin-bottom: 15px;
}

.vm-card ul {
    list-style: none;
    padding: 0;
    margin-top: 15px;
}

.vm-card ul li {
    position: relative;
    padding-left: 28px;
    margin-bottom: 12px;
    font-size: 15px;
    color: #334155;
    font-weight: 500;
}

.vm-card ul li::before {
    content: "✓";
    position: absolute;
    left: 0;
    top: 0;
    color: #D97706;
    font-weight: 800;
    font-size: 16px;
}

/* ===============================
   FEATURE / BENEFIT BOXES
=============================== */
.why-join {
    padding: 90px 0;
    background: #FFFFFF;
}

.feature-box {
    background: var(--bg-light);
    padding: 35px 25px;
    border-radius: 20px;
    border: 1px solid #E2E8F0;
    text-align: center;
    height: 100%;
    transition: all 0.4s ease;
}

.feature-box:hover {
    background: var(--gradient-navy);
    color: #FFFFFF;
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(15, 23, 42, 0.2);
    border-color: transparent;
}

.feature-box i {
    font-size: 42px;
    color: var(--accent-gold);
    margin-bottom: 20px;
    transition: transform 0.3s ease;
}

.feature-box:hover i {
    color: var(--accent-yellow);
    transform: scale(1.1);
}

.feature-box h4 {
    font-size: 1.15rem;
    font-weight: 700;
    margin-bottom: 12px;
}

.feature-box p {
    font-size: 0.95rem;
    opacity: 0.9;
    margin-bottom: 0;
}

/* ===============================
   REGISTRATION BANNER / CTA
=============================== */
.registration {
    background: var(--gradient-navy);
    color: #FFFFFF;
    padding: 80px 0;
    position: relative;
    overflow: hidden;
}

.registration::before {
    content: "";
    position: absolute;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(245, 158, 11, 0.15) 0%, rgba(0,0,0,0) 70%);
    right: -100px;
    top: -100px;
    pointer-events: none;
}

.registration h2 {
    color: #FFFFFF;
    font-size: 2.3rem;
    font-weight: 800;
    letter-spacing: -0.5px;
}

.registration p {
    font-size: 1.1rem;
    color: #94A3B8;
    margin-top: 15px;
    margin-bottom: 0;
}

/* ===============================
   GET INVOLVED & ALUMNI CARDS
=============================== */
.involve-card {
    background: #FFFFFF;
    padding: 35px 25px;
    border-radius: 20px;
    border: 1px solid #E2E8F0;
    text-align: center;
    transition: all 0.4s ease;
    box-shadow: var(--shadow-sm);
    height: 100%;
}

.involve-card:hover {
    background: var(--gradient-navy);
    color: #FFFFFF;
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(15, 23, 42, 0.2);
    border-color: transparent;
}

.involve-card i {
    font-size: 42px;
    color: var(--accent-gold);
    margin-bottom: 20px;
    transition: transform 0.3s ease;
}

.involve-card:hover i {
    color: var(--accent-yellow);
    transform: scale(1.1);
}

.involve-card h4 {
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 10px;
}

.involve-card p {
    font-size: 0.95rem;
    color: inherit;
    margin-bottom: 0;
}

.Alumni-card {
    background: #FFFFFF;
    border-radius: 20px;
    border: 1px solid #E2E8F0;
    overflow: hidden;
    text-align: center;
    box-shadow: var(--shadow-md);
    transition: all 0.4s ease;
    height: 100%;
    display: flex;
    flex-direction: column;
}

.Alumni-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
    border-color: rgba(245, 158, 11, 0.4);
}

.Alumni-card img {
    width: 100%;
    height: 260px;
    object-fit: cover;
}

.Alumni-card .card-body {
    padding: 20px;
    flex-grow: 1;
}

.Alumni-card h4 {
    color: var(--primary-navy);
    font-weight: 700;
    font-size: 1.2rem;
    margin-bottom: 6px;
}

.Alumni-card p {
    color: var(--text-muted);
    font-weight: 500;
    margin-bottom: 0;
}

/* ===============================
   INDUSTRY & RESEARCH PILLARS
=============================== */
.industry-box {
    background: #FFFFFF;
    padding: 35px 25px;
    border-radius: 20px;
    border: 1px solid #E2E8F0;
    box-shadow: var(--shadow-sm);
    transition: all 0.3s ease;
    text-align: center;
    height: 100%;
}

.industry-box:hover {
    border-color: var(--accent-gold);
    transform: translateY(-6px);
    box-shadow: var(--shadow-md);
}

.industry-box i {
    font-size: 40px;
    color: var(--accent-gold);
    margin-bottom: 18px;
}

.industry-box h4 {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--primary-navy);
    margin-bottom: 10px;
}

.industry-box p {
    color: var(--text-muted);
    font-size: 0.95rem;
    margin-bottom: 0;
}

/* ===============================
   CONTACT CARDS & FORM
=============================== */
.contact-info-card {
    background: #FFFFFF;
    border: 1px solid #E2E8F0;
    border-radius: 20px;
    padding: 35px 30px;
    box-shadow: var(--shadow-sm);
    height: 100%;
    transition: all 0.3s ease;
}

.contact-info-card:hover {
    box-shadow: var(--shadow-md);
    border-color: rgba(245, 158, 11, 0.4);
    transform: translateY(-5px);
}

.contact-item {
    display: flex;
    gap: 18px;
    margin-bottom: 25px;
}

.contact-item-icon {
    width: 50px;
    height: 50px;
    border-radius: 14px;
    background: rgba(245, 158, 11, 0.15);
    color: #D97706;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    flex-shrink: 0;
}

.contact-form-card {
    background: #FFFFFF;
    border: 1px solid #E2E8F0;
    border-radius: 24px;
    padding: 40px;
    box-shadow: var(--shadow-md);
}

.form-control, .form-select {
    padding: 12px 18px;
    border-radius: 12px;
    border: 1px solid #CBD5E1;
    font-size: 15px;
    transition: all 0.3s ease;
}

.form-control:focus, .form-select:focus {
    border-color: var(--accent-gold);
    box-shadow: 0 0 0 4px rgba(245, 158, 11, 0.15);
}

/* ===============================
   NAVBAR CSS
=============================== */
.navbar-custom {
    background: rgba(15, 23, 42, 0.95);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    padding: 16px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    position: sticky;
    top: 0;
    z-index: 1000;
    transition: all 0.3s ease;
}

.navbar-custom .navbar-brand {
    font-weight: 800;
    color: #FFFFFF;
    display: inline-flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 2px;
    text-decoration: none;
    line-height: 1.1;
}

.navbar-custom .brand-logo {
    height: 46px;
    width: auto;
    object-fit: contain;
    transition: transform 0.3s ease;
}

.navbar-custom .brand-logo:hover {
    transform: scale(1.04);
}

.navbar-custom .navbar-brand span {
    color: var(--accent-gold);
    font-size: 13px;
    font-weight: 800;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    margin-top: 2px;
}

.navbar-custom .nav-link {
    color: #CBD5E1 !important;
    font-weight: 600;
    font-size: 15px;
    padding: 8px 16px !important;
    transition: all 0.3s ease;
    border-radius: 8px;
}

.navbar-custom .nav-link:hover,
.navbar-custom .nav-link.active {
    color: var(--accent-yellow) !important;
    background: rgba(255, 255, 255, 0.05);
}

.navbar-custom .btn-nav-register {
    background: var(--gradient-gold);
    color: #0F172A !important;
    font-weight: 700;
    padding: 10px 24px;
    border-radius: 50px;
    text-decoration: none !important;
    box-shadow: 0 4px 15px rgba(245, 158, 11, 0.3);
    transition: all 0.3s ease;
    margin-left: 12px;
}

.navbar-custom .btn-nav-register:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(245, 158, 11, 0.5);
}

.navbar-toggler {
    border: 1px solid rgba(255, 255, 255, 0.2);
    padding: 6px 12px;
}

.navbar-toggler-icon {
    filter: invert(1);
}

/* ===============================
   FOOTER CSS
=============================== */
footer {
    background: #0B132B;
    color: #94A3B8;
    padding: 80px 0 0;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

footer h5 {
    color: #FFFFFF;
    font-weight: 800;
    font-size: 1.25rem;
    margin-bottom: 24px;
    position: relative;
    padding-bottom: 10px;
}

footer h5::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: 0;
    width: 40px;
    height: 3px;
    background: var(--accent-gold);
    border-radius: 2px;
}

footer p {
    font-size: 0.95rem;
    line-height: 1.7;
}

footer ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

footer ul li {
    margin-bottom: 12px;
}

footer ul li a {
    color: #94A3B8;
    text-decoration: none;
    font-size: 0.95rem;
    font-weight: 500;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

footer ul li a:hover {
    color: var(--accent-yellow);
    transform: translateX(4px);
}

.footer-social-links {
    display: flex;
    gap: 12px;
    margin-top: 20px;
}

.footer-social-links a {
    width: 42px;
    height: 42px;
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #FFFFFF;
    text-decoration: none;
    transition: all 0.3s ease;
}

.footer-social-links a:hover {
    background: var(--gradient-gold);
    color: #0F172A;
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(245, 158, 11, 0.3);
}

.footer-contact-item {
    display: flex;
    gap: 14px;
    margin-bottom: 16px;
    align-items: flex-start;
}

.footer-contact-item i {
    color: var(--accent-gold);
    font-size: 18px;
    margin-top: 4px;
}

.footer-bottom {
    background: #070D1E;
    padding: 25px 0;
    margin-top: 60px;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    text-align: center;
    font-size: 0.9rem;
    color: #64748B;
}

.footer-bottom strong {
    color: var(--accent-gold);
}

#backToTop {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 48px;
    height: 48px;
    background: var(--gradient-gold);
    color: #0F172A;
    border: none;
    border-radius: 50%;
    font-size: 20px;
    font-weight: bold;
    cursor: pointer;
    box-shadow: 0 10px 25px rgba(245, 158, 11, 0.4);
    display: none;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
    z-index: 999;
}

#backToTop:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 30px rgba(245, 158, 11, 0.6);
}

/* ===============================
   MOBILE RESPONSIVE HEADER & NAVBAR
=============================== */
@media (max-width: 991.98px) {
    .navbar-custom {
        padding: 12px 0;
    }

    .navbar-custom .container {
        display: flex;
        align-items: center;
        justify-content: space-between;
    }

    .navbar-custom .brand-logo {
        height: 36px;
    }

    .navbar-custom .navbar-brand span {
        font-size: 11px;
        letter-spacing: 1px;
    }

    .navbar-toggler {
        margin-left: auto !important;
    }

    .navbar-custom .navbar-collapse {
        background: rgba(15, 23, 42, 0.98);
        backdrop-filter: blur(20px);
        -webkit-backdrop-filter: blur(20px);
        border-radius: 16px;
        padding: 20px;
        margin-top: 12px;
        border: 1px solid rgba(255, 255, 255, 0.1);
        box-shadow: 0 15px 35px rgba(0, 0, 0, 0.4);
    }

    .navbar-custom .nav-item {
        margin-bottom: 6px;
    }

    .navbar-custom .nav-link {
        padding: 10px 16px !important;
        font-size: 16px;
        border-radius: 10px;
    }

    .navbar-custom .btn-nav-register {
        margin-left: 0;
        margin-top: 14px;
        width: 100%;
        justify-content: center;
        display: flex;
        padding: 12px 20px;
    }
}

@media (max-width: 768px) {
    .hero h1, .page-banner h1 {
        font-size: 2.2rem;
    }

    .counter {
        font-size: 36px;
    }

    .btn-outline-custom {
        margin-left: 0;
        margin-top: 12px;
        display: flex;
    }
}