/* ============================= */
/* GLOBAL STYLE */
/* ============================= */

body {
    font-family: 'Inter', sans-serif;
    margin: 0;
    color: #1a1a1a;
    background-color: #ffffff;
    overflow-x: hidden;
}

/* Smooth scroll */
html {
    scroll-behavior: smooth;
}

/* ============================= */
/* NAVBAR */
/* ============================= */

.main-nav {
    background: linear-gradient(135deg, #0f2a4a 0%, #123a63 50%, #0f2a4a 100%);
    padding: 18px 0;
    transition: all 0.4s ease;
    box-shadow: 0 10px 30px rgba(0,0,0,0.25);
}

.navbar-brand {
    letter-spacing: 1.5px;
    font-size: 15px;
    font-weight: 600;
    color: #ffffff !important;
}

/* Elegant underline animation */
.nav-link {
    color: #ffffff !important;
    margin-left: 30px;
    font-weight: 500;
    position: relative;
    transition: all 0.3s ease;
}

.nav-link::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: -6px;
    width: 0%;
    height: 2px;
    background: linear-gradient(90deg, #5ab0ff, #8fd3ff);
    transition: width 0.3s ease;
}

.nav-link:hover::after {
    width: 100%;
}

.nav-link:hover {
    opacity: 0.9;
}

/* ============================= */
/* HERO SECTION */
/* ============================= */

.hero-section {
    height: 100vh;
    padding-top: 120px;
    background: linear-gradient(135deg, #0f2a4a 40%, #174a7c 100%);
    color: white;
    display: flex;
    align-items: center;
}

.hero-title {
    font-size: 48px;
    font-weight: 700;
    line-height: 1.2;
    animation: fadeUp 1s ease forwards;
}

.hero-subtitle {
    margin-top: 25px;
    font-size: 18px;
    max-width: 600px;
    opacity: 0.92;
    animation: fadeUp 1.4s ease forwards;
}

/* ============================= */
/* EXECUTIVE BUTTON */
/* ============================= */

.btn-executive {
    background: linear-gradient(135deg, #ffffff, #f2f4f8);
    color: #0f2a4a;
    border: none;
    padding: 14px 32px;
    font-weight: 600;
    letter-spacing: 0.5px;
    border-radius: 6px;
    transition: all 0.35s ease;
    position: relative;
    overflow: hidden;
}

/* Light sweep effect */
.btn-executive::before {
    content: "";
    position: absolute;
    top: 0;
    left: -100%;
    width: 50%;
    height: 100%;
    background: rgba(255,255,255,0.4);
    transform: skewX(-25deg);
    transition: all 0.6s ease;
}

.btn-executive:hover::before {
    left: 150%;
}

.btn-executive:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 35px rgba(0,0,0,0.25);
}

/* ============================= */
/* EXECUTIVE BOX */
/* ============================= */

.executive-box {
    background: rgba(255,255,255,0.08);
    padding: 55px;
    border: 1px solid rgba(255,255,255,0.2);
    border-radius: 10px;
    text-align: center;
    font-weight: 600;
    backdrop-filter: blur(6px);
    transition: all 0.4s ease;
    animation: fadeUp 1.6s ease forwards;
}

.executive-box:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(0,0,0,0.35);
}

/* ============================= */
/* INSTITUTIONAL SECTION */
/* ============================= */

.institutional-section {
    padding: 120px 0;
    background-color: #f5f7fa;
}

.section-title {
    font-size: 30px;
    font-weight: 700;
    margin-bottom: 25px;
    position: relative;
}

.section-title::after {
    content: "";
    width: 60px;
    height: 3px;
    background: linear-gradient(90deg, #0f2a4a, #174a7c);
    position: absolute;
    bottom: -10px;
    left: 0;
}

.section-text {
    font-size: 17px;
    line-height: 1.8;
    color: #333;
}

/* ============================= */
/* SERVICES */
/* ============================= */

.services-section {
    padding: 120px 0;
    background-color: #ffffff;
}

.service-card {
    padding: 45px;
    border: 1px solid #e1e5eb;
    border-radius: 8px;
    background-color: #ffffff;
    transition: all 0.4s ease;
    height: 100%;
    position: relative;
}

.service-card::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    height: 3px;
    width: 0%;
    background: linear-gradient(90deg, #0f2a4a, #174a7c);
    transition: width 0.4s ease;
}

.service-card:hover::before {
    width: 100%;
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0,0,0,0.08);
}

/* ============================= */
/* FOOTER */
/* ============================= */

.footer {
    padding: 40px 0;
    background: linear-gradient(135deg, #0f2a4a 0%, #123a63 50%, #0f2a4a 100%);
    color: #ffffff;
    font-size: 14px;
    letter-spacing: 0.5px;
    box-shadow: 0 -10px 30px rgba(0,0,0,0.25);
}

/* ============================= */
/* ANIMATIONS */
/* ============================= */

@keyframes fadeUp {
    from {
        opacity: 0;
        transform: translateY(40px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}