/* Global CSS variables for a premium, clean design system */
:root {
    --primary-color: #0070f3; /* Vercel blue */
    --primary-hover: #0051b3;
    --primary-soft: rgba(0, 112, 243, 0.08);
    --secondary-soft: rgba(108, 117, 125, 0.08);
    --success-soft: rgba(25, 135, 84, 0.08);
    --info-soft: rgba(13, 202, 240, 0.08);
    --warning-soft: rgba(255, 193, 7, 0.08);
    --bg-light-soft: #fcfcfc;
    --border-color: #eaeaea;
    --text-primary: #111111;
    --text-secondary: #666666;
    --transition-speed: 0.3s;
}

body {
    font-family: 'Poppins', sans-serif;
    color: var(--text-primary);
    background-color: #ffffff;
    overflow-x: hidden;
}

/* Typography & Layout defaults */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    color: var(--text-primary);
}

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

.bg-primary-soft {
    background-color: var(--primary-soft);
}

.bg-secondary-soft {
    background-color: var(--secondary-soft);
}

.bg-success-soft {
    background-color: var(--success-soft);
}

.bg-info-soft {
    background-color: var(--info-soft);
}

.bg-warning-soft {
    background-color: var(--warning-soft);
}

.bg-light-soft {
    background-color: var(--bg-light-soft);
}

/* Glassmorphic Navbar */
.main-navbar {
    background-color: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    transition: all var(--transition-speed) ease;
}

.navbar-brand {
    font-weight: 700;
    letter-spacing: -0.5px;
    color: var(--text-primary) !important;
    display: flex;
    align-items: center;
    gap: 8px;
}

.logo-dot {
    display: inline-block;
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background-color: var(--primary-color);
}

.nav-link {
    font-weight: 500;
    font-size: 0.9rem;
    color: var(--text-secondary) !important;
    transition: color var(--transition-speed) ease;
}

.nav-link:hover, .nav-link.active {
    color: var(--primary-color) !important;
}

/* Wrapper & Sections */
.wrapper {
    margin-top: 80px; /* Accounts for fixed navbar */
}

.section-divider {
    border-bottom: 1px solid var(--border-color);
}

/* Hero Section */
.hero-section {
    min-height: 80vh;
    padding: 100px 0;
    background: radial-gradient(circle at 80% 20%, rgba(0, 112, 243, 0.03) 0%, transparent 40%);
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    letter-spacing: -1.5px;
}

.text-gradient {
    background: linear-gradient(135deg, var(--primary-color) 0%, #00d2ff 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-subtitle {
    font-size: 1.8rem;
    font-weight: 500;
}

.hero-description {
    font-size: 1.15rem;
    max-width: 600px;
    line-height: 1.6;
}

.hero-img-wrapper {
    position: relative;
    display: inline-block;
}

.profile-img {
    width: 320px;
    height: 320px;
    object-fit: cover;
    border: 5px solid #ffffff;
    transition: transform var(--transition-speed) ease;
}

.profile-img:hover {
    transform: scale(1.02);
}

/* Section Headings */
.section-title {
    font-size: 2.2rem;
    font-weight: 700;
    letter-spacing: -0.7px;
}

.section-subtitle-line {
    width: 60px;
    height: 4px;
    border-radius: 2px;
    background-color: var(--primary-color);
}

/* Custom Cards */
.card {
    transition: transform var(--transition-speed) ease, box-shadow var(--transition-speed) ease;
    border: 1px solid var(--border-color);
}

.hover-shadow-sm:hover {
    box-shadow: 0 .125rem .25rem rgba(0,0,0,0.075) !important;
}

/* Timeline */
.timeline {
    position: relative;
    border-left: 2px solid var(--border-color);
}

.timeline-item {
    transition: all var(--transition-speed) ease;
}

.timeline-item:hover .timeline-marker {
    transform: scale(1.4);
    background-color: var(--primary-hover) !important;
}

/* Project Cards */
.project-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 1rem 3rem rgba(0, 0, 0, 0.08) !important;
}

.project-img-wrapper {
    height: 250px;
    background-color: #f5f5f5;
    overflow: hidden;
}

.project-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-speed) ease;
}

.project-card:hover .project-img {
    transform: scale(1.03);
}

/* Progress bar customizations */
.progress-bar {
    transition: width 1s ease-in-out;
}

/* Social link hover effects */
.hover-social {
    transition: transform var(--transition-speed) ease, color var(--transition-speed) ease;
    border-radius: 12px;
    padding: 10px;
}

.hover-social:hover {
    background-color: var(--primary-soft);
    color: var(--primary-color) !important;
    transform: translateX(5px);
}

/* Footer */
.footer {
    border-top: 1px solid var(--border-color);
    background-color: #fafafa;
}

/* Transitions helper */
.transition-all {
    transition: all var(--transition-speed) ease;
}

/* Responsive adjustments */
@media (min-width: 992px) {
    .border-end-lg {
        border-right: 1px solid var(--border-color) !important;
    }
}
@media (min-width: 768px) {
    .border-end-md {
        border-right: 1px solid var(--border-color) !important;
    }
}

@media (max-width: 767.98px) {
    .hero-title {
        font-size: 2.5rem;
    }
    .profile-img {
        width: 240px;
        height: 240px;
    }
}