/* 
   Main Stylesheet for SMROG
   Inspired by faprdc.org
*/

:root {
    --primary-color: #0ea5e9; /* Modern vibrant blue */
    --primary-dark: #0369a1;
    --accent-color: #f59e0b; /* Vibrant amber/yellow */
    --accent-hover: #d97706;
    --text-color: #334155;
    --text-light: #64748b;
    --bg-color: #f8fafc;
    --white: #ffffff;
    --dark: #0f172a;
    --border-color: #e2e8f0;
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-md: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 25px 50px -12px rgb(0 0 0 / 0.25);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    --container-width: 1200px;
    --header-height: 80px;
}

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

body {
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
    color: var(--text-color);
    background-color: var(--bg-color);
    line-height: 1.6;
    overflow-x: hidden;
}

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition);
}

ul {
    list-style: none;
}

img {
    max-width: 100%;
    display: block;
}

.container {
    width: 100%;
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 1.5rem;
}

/* Typography */
h1, h2, h3, h4 {
    color: var(--dark);
    margin-bottom: 1rem;
    line-height: 1.2;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 800;
    color: var(--white);
    line-height: 1.1;
}

@media (max-width: 768px) {
    .hero-title {
        font-size: 2rem;
    }
}

.section-title {
    text-align: center;
    font-size: 2.25rem;
    margin-bottom: 3rem;
    position: relative;
    padding-bottom: 1rem;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background-color: var(--accent-color);
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    border-radius: 0.5rem;
    font-weight: 600;
    cursor: pointer;
    border: none;
    transition: var(--transition);
}

.btn-primary {
    background-color: var(--accent-color);
    color: var(--dark);
}

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

.btn-outline {
    border: 2px solid var(--white);
    color: var(--white);
}

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

/* Top Bar */
.top-bar {
    background-color: var(--primary-dark);
    color: var(--white);
    padding: 0.5rem 0;
    font-size: 0.875rem;
}

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

.top-bar-info {
    display: flex;
    gap: 1.5rem;
}

@media (max-width: 640px) {
    .top-bar-info {
        display: none;
    }
}

/* Header */
header {
    background-color: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 1000;
    transition: var(--transition);
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 0;
}

.logo img {
    height: 60px;
}

.nav-links {
    display: flex;
    gap: 2rem;
    align-items: center;
}

.nav-links a:not(.btn) {
    font-weight: 500;
    color: var(--dark);
    position: relative;
    padding-bottom: 0.25rem;
}

.nav-links a:not(.btn)::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--primary-color);
    transition: var(--transition);
}

.nav-links a:not(.btn):hover,
.nav-links a.active-nav {
    color: var(--primary-color) !important;
}

.nav-links a:not(.btn):hover::after,
.nav-links a.active-nav::after {
    width: 100% !important;
}

.mobile-menu-btn {
    display: none;
    font-size: 1.5rem;
    cursor: pointer;
}

@media (max-width: 1024px) {
    .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background-color: var(--white);
        flex-direction: column;
        padding: 1rem 1.5rem;
        gap: 1rem;
        box-shadow: var(--shadow);
    }
    
    .nav-links.active {
        display: flex;
    }
    
    .mobile-menu-btn {
        display: block;
    }
}

/* Hero Section */
.hero {
    position: relative;
    height: 650px;
    background-size: cover;
    background-position: center;
    display: flex;
    align-items: center;
    color: var(--white);
    overflow: hidden;
}

.hero::before {
    display: none;
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 700px;
    animation: fadeInUp 1s ease-out;
    color: var(--white);
}

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

.fade-in {
    animation: fadeIn 1.2s ease-out;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

/* Timeline Styles (based on GSMI) */
.timeline {
    position: relative;
    max-width: 900px;
    margin: 3rem auto;
    padding: 2rem 0;
}

.timeline::after {
    content: '';
    position: absolute;
    width: 3px;
    background-color: var(--accent-color);
    top: 0;
    bottom: 0;
    left: 50%;
    margin-left: -1.5px;
}

.timeline-item {
    padding: 10px 40px;
    position: relative;
    background-color: inherit;
    width: 50%;
}

.timeline-item::after {
    content: '';
    position: absolute;
    width: 25px;
    height: 25px;
    right: -12.5px;
    background-color: var(--white);
    border: 4px solid var(--accent-color);
    top: 15px;
    border-radius: 50%;
    z-index: 1;
}

.left {
    left: 0;
    text-align: right;
}

.right {
    left: 50%;
    text-align: left;
}

.left::before {
    content: " ";
    height: 0;
    position: absolute;
    top: 22px;
    width: 0;
    z-index: 1;
    right: 30px;
    border: medium solid white;
    border-width: 10px 0 10px 10px;
    border-color: transparent transparent transparent var(--white);
}

.right::before {
    content: " ";
    height: 0;
    position: absolute;
    top: 22px;
    width: 0;
    z-index: 1;
    left: 30px;
    border: medium solid white;
    border-width: 10px 10px 10px 0;
    border-color: transparent var(--white) transparent transparent;
}

.right::after {
    left: -12.5px;
}

@media screen and (max-width: 600px) {
    .timeline::after {
        left: 31px;
    }
    .timeline-item {
        width: 100%;
        padding-left: 70px;
        padding-right: 25px;
        text-align: left;
    }
    .timeline-item::before {
        left: 60px;
        border: medium solid white;
        border-width: 10px 10px 10px 0;
        border-color: transparent var(--white) transparent transparent;
    }
    .left::after, .right::after {
        left: 18.5px;
    }
    .right {
        left: 0%;
    }
}

/* Sections */
.section {
    padding: 5rem 0;
}

/* Grid Layouts */
.grid {
    display: grid;
    gap: 2rem;
}

.grid-3 {
    grid-template-columns: repeat(3, 1fr);
}

.grid-4 {
    grid-template-columns: repeat(4, 1fr);
}

@media (max-width: 1024px) {
    .grid-3 { grid-template-columns: repeat(2, 1fr); }
    .grid-4 { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 640px) {
    .grid-3 { grid-template-columns: 1fr; }
    .grid-4 { grid-template-columns: 1fr; }
}

.page-hero {
    background-color: var(--primary-color);
    color: var(--white);
    padding: 6rem 0;
    text-align: center;
    background-size: cover;
    background-position: center;
    position: relative;
}

.page-hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background: rgba(0, 43, 85, 0.7);
}

.page-hero .container {
    position: relative;
    z-index: 1;
}

.page-hero h1 {
    color: var(--white);
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
}

.about-grid {
    display: grid;
    grid-template-columns: 280px 1fr;
    gap: 3rem;
}

.sidebar-nav .card {
    height: auto !important;
}

@media (max-width: 1024px) {
    .about-grid {
        grid-template-columns: 1fr;
    }
}

.card {
    background-color: var(--white);
    border-radius: 1.5rem;
    padding: 2.5rem;
    box-shadow: var(--shadow-md);
    transition: all 0.4s cubic-bezier(0.25, 0.8, 0.25, 1);
    border: 1px solid rgba(226, 232, 240, 0.6);
    height: 100%;
}

.card:hover {
    transform: translateY(-10px) scale(1.02);
    box-shadow: var(--shadow-xl);
    border-color: rgba(14, 165, 233, 0.4);
}

.card-icon {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 1.5rem;
    transition: var(--transition);
    display: inline-block;
}

.card:hover .card-icon {
    transform: scale(1.1) rotate(5deg);
    color: var(--accent-color);
}

/* Footer */
footer {
    background-color: var(--dark);
    color: #cbd5e1;
    padding: 5rem 0 2rem;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.5fr;
    gap: 3rem;
    margin-bottom: 3rem;
}

@media (max-width: 1024px) {
    .footer-grid {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 640px) {
    .footer-grid {
        grid-template-columns: 1fr;
    }
}

.footer-title {
    color: var(--white);
    font-size: 1.25rem;
    margin-bottom: 1.5rem;
}

.footer-links a {
    display: block;
    margin-bottom: 0.75rem;
}

.footer-links a:hover {
    color: var(--accent-color);
    padding-left: 5px;
}

.footer-bottom {
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    text-align: center;
    font-size: 0.875rem;
}

/* Form Styles */
.form-group {
    margin-bottom: 1.5rem;
}

label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
}

input, select, textarea {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--border-color);
    border-radius: 0.5rem;
    font-family: inherit;
    font-size: 1rem;
}

input:focus, select:focus, textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(0, 74, 153, 0.1);
}

/* Utils */
.text-center { text-align: center; }
.mb-2 { margin-bottom: 0.5rem; }
.mb-4 { margin-bottom: 1rem; }
.mt-4 { margin-top: 1rem; }