/* ====================================
   DESIGN SYSTEM VARIABLES
   ==================================== */
:root {
    /* Primary Colors */
    --primary-color: #236499;
    --primary-light: #e9f0fd;
    --primary-dark: #1a4d73;
    
    /* Neutral Colors */
    --white: #ffffff;
    --light-gray: #f8f9fa;
    --medium-gray: #6c757d;
    --dark-gray: #212529;
    --border-light: rgba(255, 255, 255, 0.08);
    
    /* Typography */
    --font-family-primary: 'Inter', sans-serif;
    --font-family-secondary: 'Roboto', sans-serif;
    
    /* Font Sizes */
    --fs-xs: 0.875rem;    /* 14px */
    --fs-sm: 1rem;        /* 16px */
    --fs-base: 1.125rem;  /* 18px */
    --fs-lg: 1.5rem;      /* 24px */
    --fs-xl: 2rem;        /* 32px */
    --fs-2xl: 2.5rem;     /* 40px */
    --fs-3xl: 3.5rem;     /* 56px */
    
    /* Font Weights */
    --fw-normal: 400;
    --fw-medium: 500;
    --fw-semibold: 600;
    --fw-bold: 700;
    --fw-black: 900;
    
    /* Spacing Scale */
    --space-xs: 4px;
    --space-sm: 8px;
    --space-md: 16px;
    --space-lg: 24px;
    --space-xl: 32px;
    --space-2xl: 48px;
    --space-3xl: 64px;
    
    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 15px;
    --radius-full: 50%;
    
    /* Shadows */
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 5px 15px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.15);
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
}

/* ====================================
   BASE TYPOGRAPHY SYSTEM
   ==================================== */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-family-primary);
    line-height: 1.2;
    margin-bottom: var(--space-md);
    color: var(--dark-gray);
}

h1 { font-size: var(--fs-3xl); font-weight: var(--fw-black); }
h2 { font-size: var(--fs-2xl); font-weight: var(--fw-bold); }
h3 { font-size: var(--fs-xl); font-weight: var(--fw-bold); }
h4 { font-size: var(--fs-lg); font-weight: var(--fw-semibold); }
h5 { font-size: var(--fs-base); font-weight: var(--fw-semibold); }
h6 { font-size: var(--fs-sm); font-weight: var(--fw-medium); }

p {
    font-family: var(--font-family-secondary);
    font-size: var(--fs-base);     /* Now 18px instead of 16px */
    line-height: 1.7;              /* Increased line height for better readability */
    margin-bottom: var(--space-md);
    color: var(--medium-gray);
}

/* ====================================
   BUTTON SYSTEM
   ==================================== */
.btn {
    font-family: var(--font-family-primary);
    font-weight: var(--fw-medium);
    border-radius: var(--radius-md);
    transition: all var(--transition-normal);
    border: 2px solid transparent;
    text-decoration: none !important;
}

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

.btn-primary:hover {
    background-color: var(--primary-dark) !important;
    border-color: var(--primary-dark) !important;
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-outline-primary {
    background-color: transparent;
    border-color: var(--primary-color);
    color: var(--primary-color);
}

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

.btn-light {
    background-color: var(--white);
    border-color: var(--white);
    color: var(--primary-color) !important;
}

.btn-light:hover {
    background-color: var(--light-gray);
    transform: translateY(-2px);
}

/* ====================================
   NAVIGATION SYSTEM
   ==================================== */
.topbar {
    background-color: var(--light-gray) !important;
    padding: var(--space-md) 0;
    border-bottom: 1px solid #e9ecef;
}

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

.topbar a {
    color: var(--medium-gray) !important;
    font-size: var(--fs-sm);       /* Now 16px instead of smaller */
    text-decoration: none;
    transition: color var(--transition-fast);
}

.topbar a:hover {
    color: var(--primary-color) !important;
}

.topbar .fas {
    margin-right: var(--space-sm);
    color: var(--primary-color) !important;
}

.navbar {
    background-color: var(--white) !important;
    box-shadow: var(--shadow-sm);
    padding: var(--space-md) 0;
}

.navbar-brand img {
    height: 80px;
    max-height: 80px;
    transition: transform var(--transition-normal);
}

.navbar-brand:hover img {
    transform: scale(1.05);
}

.navbar-nav .nav-link {
    color: var(--dark-gray) !important;
    font-weight: var(--fw-medium);
    font-size: var(--fs-sm);        /* 16px for navigation */
    text-decoration: none !important;
    border: none !important;
    margin: 0 var(--space-sm);
    transition: all var(--transition-fast);
    position: relative;
}

.navbar-nav .nav-link:hover {
    color: var(--primary-color) !important;
    transform: translateY(-1px);
}

.navbar-nav .nav-link.active {
    color: var(--primary-color) !important;
    font-weight: var(--fw-semibold);
}

.navbar-nav .nav-link.active::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 50%;
    transform: translateX(-50%);
    width: 30px;
    height: 2px;
    background-color: var(--primary-color);
}

.dropdown-menu {
    border: none;
    box-shadow: var(--shadow-md);
    border-radius: var(--radius-md);
    padding: var(--space-sm) 0;
}

.dropdown-item {
    color: var(--dark-gray);
    padding: var(--space-sm) var(--space-lg);
    transition: all var(--transition-fast);
}

.dropdown-item:hover {
    background-color: var(--primary-light);
    color: var(--primary-color);
}

/* ====================================
   CARD SYSTEM
   ==================================== */
.card {
    border: none;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-normal);
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
}

/* Program Cards */
.program-card {
    background: var(--light-gray);
    border-radius: var(--radius-lg);
    padding: var(--space-2xl) var(--space-lg);
    height: 100%;
    transition: all var(--transition-normal);
    position: relative;
    box-shadow: var(--shadow-sm);
    min-height: 300px;
    cursor: pointer;
    text-align: center;
}

.program-card:hover {
    background: var(--white);
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
}

.program-card .icon {
    font-size: 3rem;
    color: var(--primary-color);
    transition: transform var(--transition-normal);
    margin-bottom: var(--space-md);
}

.program-card:hover .icon {
    transform: scale(1.1);
}

.program-card h5 {
    color: var(--primary-color);
    font-weight: var(--fw-semibold);
    margin-bottom: var(--space-md);
}

.program-card .preview {
    color: var(--dark-gray);
    font-weight: var(--fw-medium);
    font-size: var(--fs-sm);        /* 16px instead of base */
}

.program-card .full-info {
    color: var(--medium-gray);
    opacity: 0;
    height: 0;
    overflow: hidden;
    transition: all var(--transition-normal);
    margin-top: 0;
    font-size: var(--fs-sm);        /* 16px for better readability */
    line-height: 1.6;               /* Better line height */
}

.program-card:hover .full-info {
    opacity: 1;
    height: auto;
    margin-top: var(--space-md);
}

.program-card:hover .preview {
    display: none;
}

/* ====================================
   TEAM MEMBER SYSTEM
   ==================================== */
.team-member {
    margin-bottom: var(--space-2xl);
    transition: all var(--transition-normal);
    text-align: center;
}

.team-member:hover {
    transform: translateY(-8px);
}

.team-member .img-wrapper {
    position: relative;
    overflow: hidden;
    border-radius: var(--radius-full);
    width: 180px;
    height: 180px;
    margin: 0 auto var(--space-lg) auto;
    box-shadow: var(--shadow-md);
    transition: all var(--transition-normal);
}

.team-member:hover .img-wrapper {
    box-shadow: var(--shadow-lg);
}

.team-member img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: var(--radius-full);
    transition: all var(--transition-slow);
}

.team-member:hover img {
    transform: scale(1.1);
}

.team-member .member-info {
    padding: var(--space-lg);
    background: var(--white);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
}

.team-member h4 {
    color: var(--dark-gray);
    font-weight: var(--fw-bold);
    margin-bottom: var(--space-xs);
}

.team-member .position {
    display: block;
    color: var(--primary-color);
    font-weight: var(--fw-medium);
    margin-bottom: var(--space-md);
    font-size: var(--fs-base);
}

.team-member .bio {
    color: var(--medium-gray);
    font-size: var(--fs-sm);        /* 16px for better readability */
    line-height: 1.7;               /* Increased line height */
}

.expertise-tag {
    display: inline-block;
    background-color: var(--primary-light);
    color: var(--primary-color);
    border-radius: 20px;
    padding: var(--space-xs) var(--space-md);
    margin: var(--space-xs) var(--space-xs);
    font-size: var(--fs-xs);        /* 14px - appropriate for tags */
    font-weight: var(--fw-medium);
    transition: all var(--transition-fast);
}

.expertise-tag:hover {
    background-color: var(--primary-color);
    color: var(--white);
    transform: translateY(-1px);
}

/* ====================================
   SECTION SYSTEM
   ==================================== */
.section-spacing {
    padding: var(--space-3xl) 0;
}

.section-title {
    position: relative;
    display: inline-block;
    color: var(--dark-gray);
    margin-bottom: var(--space-lg);
}

.section-title::after {
    position: absolute;
    content: "";
    width: 60px;
    height: 3px;
    bottom: -8px;
    left: 0;
    background: var(--primary-color);
    border-radius: 2px;
}

.text-primary {
    color: var(--primary-color) !important;
}

/* Page Headers */
.page-header {
    background: linear-gradient(rgba(0, 0, 0, 0.6), rgba(0, 0, 0, 0.6)), 
                url(img/teamback.jpg);
    background-position: center center;
    background-repeat: no-repeat;
    background-size: cover;
    padding: var(--space-3xl) 0;
    color: var(--white);
}

/* Call to Action */
.cta-section {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    position: relative;
    overflow: hidden;
}

.cta-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><circle cx="20" cy="20" r="2" fill="rgba(255,255,255,0.1)"/><circle cx="80" cy="40" r="3" fill="rgba(255,255,255,0.1)"/><circle cx="40" cy="80" r="2" fill="rgba(255,255,255,0.1)"/></svg>');
    pointer-events: none;
}

/* ====================================
   ANIMATIONS
   ==================================== */
@keyframes slideInLeft {
    from {
        transform: translateX(-50px);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

@keyframes slideInRight {
    from {
        transform: translateX(50px);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

@keyframes fadeInUp {
    from {
        transform: translateY(30px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

.animate-left {
    animation: slideInLeft 0.8s ease-out;
}

.animate-right {
    animation: slideInRight 0.8s ease-out;
}

.fade-in-up {
    animation: fadeInUp 0.6s ease-out;
}

/* ====================================
   FOOTER SYSTEM
   ==================================== */
.footer {
    background: linear-gradient(135deg, var(--dark-gray) 0%, #1a1a1a 100%);
    color: var(--white);
}

.footer h4 {
    color: var(--white);
    font-weight: var(--fw-semibold);
    margin-bottom: var(--space-lg);
}

.footer a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    transition: color var(--transition-fast);
    display: block;
    padding: var(--space-xs) 0;
}

.footer a:hover {
    color: var(--white);
    padding-left: var(--space-sm);
}

.footer .btn-primary {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.footer .btn-primary:hover {
    background-color: var(--white);
    color: var(--primary-color) !important;
    transform: translateY(-2px);
}

/* ====================================
   UTILITY CLASSES
   ==================================== */
.bg-primary-gradient {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
}

.text-gradient {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.shadow-custom {
    box-shadow: var(--shadow-md);
}

.border-primary {
    border-color: var(--primary-color) !important;
}

/* ====================================
   RESPONSIVE DESIGN
   ==================================== */
@media (max-width: 768px) {
    :root {
        --fs-3xl: 2rem;
        --fs-2xl: 1.75rem;
        --space-3xl: 48px;
        --space-2xl: 32px;
    }
    
    .navbar-brand img {
        height: 60px;
        max-height: 60px;
    }
    
    .program-card {
        min-height: 250px;
        padding: var(--space-lg);
    }
    
    .team-member .img-wrapper {
        width: 150px;
        height: 150px;
    }
    
    .section-title::after {
        width: 40px;
        height: 2px;
    }
}

/* ====================================
   PRINT STYLES
   ==================================== */
@media print {
    .navbar, .footer, .btn, .cta-section {
        display: none !important;
    }
    
    * {
        box-shadow: none !important;
        text-shadow: none !important;
    }
    
    body {
        font-size: 12pt;
        line-height: 1.4;
    }
}