/* 31-Agency Aesthetic Core Styles - Premium Redesign */

/* Core Resets & Variables */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; overflow-x: hidden; }
body { background-color: var(--clr-bg-main); color: var(--clr-text-secondary); font-family: var(--font-body); line-height: 1.6; overflow-x: hidden; min-width: 0; }

/* Scrollbar */
body::-webkit-scrollbar { width: 8px; }
body::-webkit-scrollbar-track { background: var(--clr-bg-main); }
body::-webkit-scrollbar-thumb { background: var(--clr-accent-1); border-radius: var(--radius-pill); }

/* Premium Typography */
h1, h2, h3, h4, h5, h6 { font-family: var(--font-heading); color: var(--clr-text-primary); line-height: 1.2; font-weight: 700; }
h1 { font-size: clamp(3rem, 8vw, 6rem); letter-spacing: -1.5px; font-weight: 800; }
h2 { font-size: clamp(2.5rem, 5vw, 4rem); letter-spacing: -1px; }
h3 { font-size: clamp(1.25rem, 2.5vw, 2rem); letter-spacing: -0.5px; }
a { color: inherit; text-decoration: none; transition: color var(--transition-fast); }

/* Layout & Spacing */
.container { width: 100%; max-width: var(--container-width); margin: 0 auto; padding: 0 var(--spacing-md); }
.section-padding { padding: var(--spacing-xl) 0; }
.agency-box { 
    padding: var(--spacing-lg); 
    background: var(--clr-bg-alt); 
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    transition: all var(--transition-base); 
    display: flex; 
    flex-direction: column; 
    justify-content: center; 
}
.agency-box:hover { 
    background: var(--clr-bg-glass);
    backdrop-filter: blur(12px);
    border-color: rgba(255, 255, 255, 0.15);
    transform: translateY(-5px);
    box-shadow: var(--shadow-soft);
}
.agency-icon { font-size: 2.5rem; margin-bottom: var(--spacing-sm); }

/* Grid Layouts - Using Gaps instead of strict borders */
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: var(--spacing-md); }
.grid-2-no-border { display: grid; grid-template-columns: 1fr 1fr; gap: var(--spacing-md); }
.grid-3 { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 320px), 1fr)); gap: var(--spacing-md); }

/* Soft Pill Buttons */
.btn { 
    display: inline-flex; align-items: center; justify-content: center; 
    padding: 1rem 2.5rem; font-weight: 600; font-family: var(--font-body); 
    cursor: pointer; transition: all var(--transition-fast); 
    border: none; border-radius: var(--radius-pill); 
    background: var(--clr-text-primary); color: var(--clr-bg-main); 
    letter-spacing: 0.5px; 
}
.btn-primary { 
    background: var(--clr-accent-1); color: #fff; 
    box-shadow: 0 4px 15px rgba(25, 171, 197, 0.2); 
}
.btn-primary:hover { 
    background: var(--clr-accent-gradient); 
    transform: translateY(-3px); 
    box-shadow: var(--shadow-glow); 
}
.btn-secondary:hover { 
    background: #fff; color: #000; 
    transform: translateY(-3px); 
    box-shadow: var(--shadow-soft); 
}

/* Marquee - Keeping it but refining the colors */
.marquee-container { width: 100vw; overflow: hidden; background: var(--clr-bg-alt); color: var(--clr-accent-1); padding: 1.5rem 0; display: flex; align-items: center; position: relative; left: 50%; right: 50%; margin-left: -50vw; margin-right: -50vw; border-top: 1px solid var(--border-color); border-bottom: 1px solid var(--border-color); z-index: 10; }
.marquee-content { display: flex; white-space: nowrap; animation: marquee 20s linear infinite; }
.marquee-content span { font-family: var(--font-heading); font-size: 2rem; font-weight: 600; text-transform: uppercase; padding: 0 2rem; letter-spacing: 2px; }
@keyframes marquee { 0% { transform: translateX(0); } 100% { transform: translateX(-50%); } }

/* Navbar - Glassmorphism */
.navbar { position: fixed; top: 0; width: 100%; height: var(--nav-height); display: flex; align-items: center; z-index: 1000; transition: all var(--transition-base); border-bottom: 1px solid transparent; background: transparent; }
.navbar.scrolled { 
    background: var(--clr-bg-glass); 
    backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--border-color); 
}
.nav-wrapper { display: flex; justify-content: space-between; align-items: center; width: 100%; }
.logo a { font-family: var(--font-heading); font-size: 1.8rem; font-weight: 800; color: var(--clr-text-primary); letter-spacing: -1px; }
.nav-links { display: flex; gap: var(--spacing-md); }
.nav-links a { font-weight: 500; font-size: 0.95rem; color: var(--clr-text-secondary); position: relative; }
.nav-links a:hover, .nav-links a.active-link { color: var(--clr-text-primary); }
.nav-links a::after { content: ''; position: absolute; bottom: -5px; left: 0; width: 0; height: 2px; background: var(--clr-accent-1); transition: width var(--transition-fast); }
.nav-links a:hover::after, .nav-links a.active-link::after { width: 100%; }

/* Mobile menu defaults */
.mobile-menu-btn { display: none; background: none; border: none; cursor: pointer; width: 30px; height: 20px; position: relative; z-index: 1001; }
.mobile-menu-btn .bar { position: absolute; width: 100%; height: 2px; background: var(--clr-text-primary); left: 0; transition: all var(--transition-base); }

/* Features & Sections Specifics */
.gradient-text { 
    background: var(--clr-accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    display: inline-block;
}
.text-right { text-align: right; }
.huge-text { font-size: clamp(3rem, 6vw, 6rem); font-family: var(--font-heading); font-weight: 800; color: var(--clr-text-primary); line-height: 1; margin-bottom: 1rem; }

/* Contact Forms */
.form-group { margin-bottom: 1.5rem; }
.form-group input, .form-group textarea { 
    width: 100%; padding: 1rem 1.5rem; 
    background: rgba(255,255,255,0.03); 
    border: 1px solid var(--border-color); 
    border-radius: var(--radius-sm);
    color: var(--clr-text-primary); font-family: var(--font-body); font-size: 1.1rem; 
    outline: none; transition: all var(--transition-fast); 
}
.form-group input::placeholder, .form-group textarea::placeholder { color: var(--clr-text-secondary); opacity: 0.6; }
.form-group input:focus, .form-group textarea:focus { 
    border-color: var(--clr-accent-1); 
    background: rgba(255,255,255,0.06);
    box-shadow: var(--shadow-glow);
}
.form-submit { margin-top: 1rem; width: 100%; }

/* Footer */
.footer { padding: var(--spacing-xl) 0 3rem; background: var(--clr-bg-alt); border-top: 1px solid var(--border-color); }
.footer-content { display: flex; justify-content: space-between; align-items: center; }

/* University Logos */
.uni-logo {
    height: 60px;
    width: auto;
    max-width: 140px;
    object-fit: contain;
    background: #fff;
    border-radius: var(--radius-sm);
    padding: 6px 10px;
    transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}
.uni-logo:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-soft);
}

/* Contact Section - Premium Cards Layout */
.contact-header { text-align: center; margin-bottom: 3rem; }
.contact-overline { color: var(--clr-accent-1); font-size: 0.8rem; font-weight: 600; letter-spacing: 3px; text-transform: uppercase; display: block; margin-bottom: 0.75rem; }
.contact-header h2 { margin-bottom: 0.75rem; }
.contact-subtitle { color: var(--clr-text-secondary); font-size: 1.1rem; max-width: 500px; margin: 0 auto; line-height: 1.7; }

.contact-cards-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 1rem;
}

.contact-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 0.6rem;
    padding: 1.5rem 1rem;
    background: var(--clr-bg-alt);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    text-decoration: none;
    color: inherit;
    transition: all var(--transition-base);
    cursor: pointer;
}
.contact-card:hover {
    border-color: var(--clr-accent-1);
    transform: translateY(-5px);
    box-shadow: 0 10px 24px rgba(0,0,0,0.35), 0 0 0 1px var(--clr-accent-1);
    background: rgba(25, 171, 197, 0.04);
}
.contact-card-icon {
    width: 42px;
    height: 42px;
    border-radius: 10px;
    background: rgba(25, 171, 197, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--clr-accent-1);
    flex-shrink: 0;
}
.contact-card-icon svg { width: 18px; height: 18px; }
.contact-card--whatsapp:hover { border-color: #25D366; box-shadow: 0 10px 24px rgba(0,0,0,0.35), 0 0 0 1px #25D366; background: rgba(37, 211, 102, 0.04); }
.contact-card--whatsapp .contact-card-icon { background: rgba(37, 211, 102, 0.1); color: #25D366; }
.contact-card--instagram:hover { border-color: #E1306C; box-shadow: 0 10px 24px rgba(0,0,0,0.35), 0 0 0 1px #E1306C; background: rgba(225, 48, 108, 0.04); }
.contact-card--instagram .contact-card-icon { background: rgba(225, 48, 108, 0.1); color: #E1306C; }
.contact-label { font-size: 0.72rem; font-weight: 600; letter-spacing: 1.5px; text-transform: uppercase; color: var(--clr-text-secondary); }
.contact-value { font-size: 0.9rem; font-weight: 500; color: var(--clr-text-primary); word-break: break-word; }

/* ==============================
   Performance: GPU acceleration for animations
   ============================== */
.agency-box, .contact-card, .btn, .uni-logo, .marquee-content, .nav-links {
    will-change: transform;
    -webkit-backface-visibility: hidden;
    backface-visibility: hidden;
}
.marquee-content {
    -webkit-transform: translateZ(0);
    transform: translateZ(0);
}

/* ==============================
   Utility spacing classes
   ============================== */
.mt-4 { margin-top: 1.5rem; }
.mb-4 { margin-bottom: 1.5rem; }

/* ==============================
   RESPONSIVE: Small Laptops (≤1200px)
   ============================== */
@media (max-width: 1200px) {
    .container { padding: 0 1.5rem; }
    .contact-cards-grid { grid-template-columns: repeat(3, 1fr); }
    h1 { font-size: clamp(2.8rem, 7vw, 5rem); }
}

/* ==============================
   RESPONSIVE: Tablets & iPads (≤991px)
   ============================== */
@media (max-width: 991px) {
    .grid-2, .grid-2-no-border, .grid-3 { grid-template-columns: 1fr; }
    .agency-box { padding: var(--spacing-md); }
    .section-padding { padding: var(--spacing-lg) 0; }
    .contact-cards-grid { grid-template-columns: repeat(3, 1fr); }
    .text-right { text-align: left; }
    .huge-text { font-size: clamp(2.5rem, 5vw, 4rem); }

    /* Mobile Nav */
    .nav-links {
        position: fixed; top: 0; right: -100%;
        width: 100%; height: 100vh;
        background: var(--clr-bg-main);
        flex-direction: column; justify-content: center; align-items: center;
        gap: var(--spacing-lg);
        transition: right var(--transition-base);
        z-index: 1000;
    }
    .nav-links.active { right: 0; }
    .nav-links a { font-size: 1.5rem; color: var(--clr-text-primary); }
    .mobile-menu-btn { display: block; }
    .nav-actions .btn { display: none; }

    .mobile-menu-btn .bar:nth-child(1) { top: 0; }
    .mobile-menu-btn .bar:nth-child(2) { top: 9px; }
    .mobile-menu-btn .bar:nth-child(3) { top: 18px; }
    .mobile-menu-btn.active .bar:nth-child(1) { transform: rotate(45deg); top: 9px; }
    .mobile-menu-btn.active .bar:nth-child(2) { opacity: 0; }
    .mobile-menu-btn.active .bar:nth-child(3) { transform: rotate(-45deg); top: 9px; }

    /* Marquee */
    .marquee-content span { font-size: 1.5rem; padding: 0 1.25rem; }

    /* Footer */
    .footer-content { flex-direction: column; gap: 1rem; text-align: center; }
}

/* ==============================
   RESPONSIVE: Large Phones / Small Tablets (≤768px)
   ============================== */
@media (max-width: 768px) {
    .container { padding: 0 1.25rem; }
    .section-padding { padding: 3.5rem 0; }
    .contact-cards-grid { grid-template-columns: repeat(2, 1fr); }
    h1 { font-size: clamp(2.4rem, 8vw, 3.5rem); }
    h2 { font-size: clamp(2rem, 5vw, 3rem); }
    h3 { font-size: clamp(1.1rem, 3vw, 1.6rem); }
    .hero-section { padding-top: 12vh !important; }

    /* Stat text on smaller screens */
    .stat-item p { font-size: 1rem !important; }

    /* University logos */
    .uni-logo { height: 50px; max-width: 120px; }

    /* Agency box hover - disable transform on touch */
    .agency-box:hover { transform: none; }
}

/* ==============================
   RESPONSIVE: Phones (≤480px)
   ============================== */
@media (max-width: 480px) {
    html { font-size: 15px; }
    .container { padding: 0 1rem; }
    .section-padding { padding: 3rem 0; }
    h1 { font-size: clamp(2rem, 9vw, 3rem); letter-spacing: -1px; }
    h2 { font-size: clamp(1.8rem, 6vw, 2.5rem); }
    .hero-section { padding-top: 10vh !important; }

    .contact-cards-grid { grid-template-columns: 1fr; }
    .contact-card { flex-direction: row; text-align: left; padding: 1.25rem; }
    .contact-card-icon { width: 38px; height: 38px; }
    .contact-card-icon svg { width: 16px; height: 16px; }

    .grid-2-no-border { gap: 1rem; }
    .agency-box { padding: 1.5rem; }

    /* Marquee */
    .marquee-content span { font-size: 1.2rem; padding: 0 1rem; }
    .marquee-container { padding: 1rem 0; }

    /* Buttons */
    .btn { padding: 0.85rem 2rem; font-size: 0.9rem; width: 100%; }

    /* University logos */
    .uni-logo { height: 45px; max-width: 100px; padding: 4px 8px; }

    /* Huge text stats */
    .huge-text { font-size: clamp(2.2rem, 10vw, 3.5rem); }

    /* Nav */
    .logo a { font-size: 1.4rem; }
    .nav-links a { font-size: 1.25rem; }

    /* Footer */
    .footer { padding: 2rem 0; }
}

/* ==============================
   Touch device optimizations
   ============================== */
@media (hover: none) {
    .agency-box:hover { transform: none; box-shadow: none; }
    .contact-card:hover { transform: none; }
    .btn-primary:hover { transform: none; }
    .uni-logo:hover { transform: none; }
}