/* ==========================================
   STUDYFLIX APPS MASTER DESIGN SYSTEM
========================================== */
@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@300;400;500;600;700;800&display=swap');

:root {
    --primary: #E53935;
    --primary-hover: #D32F2F;
    --background: #0B1020;
    --surface: #12192F;
    --card: #1B2441;
    --text: #FFFFFF;
    --text-secondary: #C9D1E3;
    
    --border: rgba(255, 255, 255, 0.06);
    --border-hover: rgba(255, 255, 255, 0.15);
    --shadow: 0 20px 50px rgba(0, 0, 0, 0.4);
    
    --radius-small: 12px;
    --radius-medium: 18px;
    --radius-large: 24px;
    --transition: cubic-bezier(0.25, 0.8, 0.25, 1) 0.4s;
}

/* ================= THEME CORE ================= */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    background: var(--background);
}

body {
    font-family: 'Poppins', sans-serif;
    background: var(--background);
    color: var(--text);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

body.modal-open {
    overflow: hidden;
}

/* ================= SCROLL BAR ================= */
::-webkit-scrollbar {
    width: 8px;
}
::-webkit-scrollbar-track {
    background: var(--background);
}
::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 20px;
}
::-webkit-scrollbar-thumb:hover {
    background: var(--primary);
}

/* ================= BACKGROUND BLOBS ================= */
.blob-bg {
    position: fixed;
    width: 500px;
    height: 500px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(229,57,53,0.06) 0%, rgba(0,0,0,0) 70%);
    filter: blur(80px);
    z-index: -1;
    pointer-events: none;
    animation: slowMelt 20s infinite alternate ease-in-out;
}
.blob-1 { top: -10%; left: -10%; }
.blob-2 { bottom: -10%; right: -10%; animation-delay: -5s; }

@keyframes slowMelt {
    0% { transform: translate(0, 0) scale(1); }
    100% { transform: translate(60px, 40px) scale(1.15); }
}

/* ================= PRELOADER LOADING ANIMATION ================= */
#preloader {
    position: fixed;
    top: 0; left: 0; width: 100%; height: 100%;
    background: var(--background);
    z-index: 9999;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    transition: opacity 0.6s cubic-bezier(0.25, 0.8, 0.25, 1);
}
.loader-logo {
    font-size: 36px;
    font-weight: 800;
    letter-spacing: 1px;
    margin-bottom: 20px;
    color: var(--text);
}
.loader-logo span { color: var(--primary); }
.loader-bar {
    width: 140px;
    height: 3px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 10px;
    overflow: hidden;
}
.loader-progress {
    width: 40%;
    height: 100%;
    background: var(--primary);
    border-radius: 10px;
    animation: loadMove 1.2s infinite ease-in-out;
}
@keyframes loadMove {
    0% { transform: translateX(-100%); }
    100% { transform: translateX(250%); }
}

/* ================= STICKY HEADER ================= */
header {
    width: 100%;
    position: sticky;
    top: 0;
    z-index: 1000;
    background: rgba(11, 16, 32, 0.75);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
    padding: 20px 8%;
}
nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1400px;
    margin: auto;
}
.logo {
    font-size: 26px;
    font-weight: 800;
    color: var(--text);
    letter-spacing: 0.5px;
}
.logo span { color: var(--primary); }
nav ul {
    display: flex;
    align-items: center;
    list-style: none;
    gap: 35px;
}
nav a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 15px;
    font-weight: 500;
    transition: var(--transition);
    position: relative;
    padding-bottom: 4px;
}
nav a:hover { 
    color: var(--primary); 
}
nav a::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: 0;
    width: 0;
    height: 2px;
    background: var(--primary);
    transition: var(--transition);
}
nav a:hover::after {
    width: 100%;
}

/* ================= CORE UTILITIES & RESPONSIVE SECTIONS ================= */
section {
    width: 100%;
    padding: 100px 8%;
    max-width: 1400px;
    margin: auto;
}
h2 {
    font-size: 44px;
    font-weight: 700;
    text-align: center;
    letter-spacing: -0.5px;
}
.section-subtitle {
    text-align: center;
    max-width: 600px;
    margin: 12px auto 65px;
    color: var(--text-secondary);
    font-size: 17px;
}

/* ================= HERO LAYOUT ================= */
#hero {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    align-items: center;
    gap: 80px;
    min-height: calc(90vh - 80px);
    padding-top: 40px;
}
.hero-badge {
    display: inline-block;
    padding: 6px 16px;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--border);
    border-radius: 999px;
    font-size: 13px;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: 25px;
}
.gradient-text {
    font-size: 62px;
    font-weight: 800;
    line-height: 1.15;
    margin-bottom: 24px;
    letter-spacing: -1px;
}
.gradient-text span {
    color: var(--primary);
}
#hero p {
    font-size: 19px;
    color: var(--text-secondary);
    margin-bottom: 40px;
    max-width: 580px;
}
.hero-buttons {
    display: flex;
    gap: 16px;
}

/* ================= BUTTON MECHANICS ================= */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 200px;
    height: 56px;
    font-size: 16px;
    font-weight: 600;
    border-radius: var(--radius-small);
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
    box-sizing: border-box;
}
.primary-btn {
    background: var(--primary);
    color: var(--text);
    border: none;
    box-shadow: 0 10px 30px rgba(229, 57, 51, 0.2);
}
.primary-btn:hover {
    background: var(--primary-hover);
    transform: translateY(-3px);
    box-shadow: 0 15px 35px rgba(229, 57, 51, 0.35);
}
.secondary-btn {
    background: rgba(255, 255, 255, 0.03);
    color: var(--text);
    border: 1px solid var(--border);
}
.secondary-btn:hover {
    background: rgba(255, 255, 255, 0.08);
    transform: translateY(-3px);
    border-color: var(--border-hover);
}
.btn-sm {
    width: 160px;
    height: 44px;
    font-size: 14px;
}

/* ================= HERO FLOATING ART ================= */
.hero-visual {
    position: relative;
    height: 450px;
    display: flex;
    align-items: center;
    justify-content: center;
}
.floating-card {
    position: absolute;
    padding: 20px 28px;
    background: rgba(27, 36, 65, 0.4);
    border: 1px solid var(--border);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-radius: var(--radius-medium);
    font-weight: 600;
    font-size: 17px;
    box-shadow: var(--shadow);
    color: var(--text);
    animation: floatCycle 6s infinite ease-in-out;
}
.card-1 { top: 15%; left: 10%; animation-delay: 0s; }
.card-2 { top: 45%; right: 5%; animation-delay: 2s; }
.card-3 { bottom: 15%; left: 20%; animation-delay: 4s; }

@keyframes floatCycle {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-15px); }
}

/* ================= APPS LAYOUT GRID ================= */
.apps-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 30px;
}
.app-card {
    background: var(--card);
    border: 1px solid var(--border);
    padding: 40px;
    border-radius: var(--radius-large);
    box-shadow: var(--shadow);
    transition: var(--transition);
    display: flex;
    flex-direction: column;
}
.app-card:hover {
    transform: translateY(-8px);
    border-color: rgba(229, 57, 53, 0.3);
    box-shadow: 0 30px 60px rgba(229, 57, 53, 0.12);
}
.status {
    align-self: flex-start;
    padding: 5px 14px;
    border-radius: 999px;
    font-size: 12px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 25px;
}
.available { background: rgba(76, 175, 80, 0.12); color: #64DD88; }
.coming { background: rgba(255, 193, 7, 0.12); color: #FFD54F; }
.app-icon { font-size: 48px; margin-bottom: 20px; }

/* ================= VECTOR EMBED FALLBACK INTERFACE ================= */
.app-card-icon-wrap {
    width: 56px;
    height: 56px;
    border-radius: var(--radius-small);
    background: rgba(229, 57, 53, 0.08);
    border: 1px solid rgba(229, 57, 53, 0.15);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
    color: var(--primary);
    transition: var(--transition);
}
.app-card:hover .app-card-icon-wrap {
    background: var(--primary);
    color: var(--text);
    box-shadow: 0 8px 20px rgba(229, 57, 53, 0.25);
}
.app-icon-image{
    width:64px;
    height:64px;
    object-fit:contain;
    border-radius:12px;
    transition:0.35s;
}

.app-card:hover .app-icon-image{
    transform:scale(1.08);
}

.app-card h3 { font-size: 24px; margin-bottom: 12px; color: var(--text); }
.app-card p { color: var(--text-secondary); font-size: 15px; margin-bottom: 25px; flex-grow: 1; }
.features { list-style: none; margin-bottom: 35px; }
.features li { font-size: 14px; color: var(--text-secondary); margin-bottom: 8px; text-align: left; }

.card-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    width: 100%;
    height: 48px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border);
    border-radius: var(--radius-small);
    color: var(--text);
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
}
.app-card:hover .card-btn {
    background: var(--primary);
    border-color: var(--primary);
    box-shadow: 0 8px 20px rgba(229, 57, 51, 0.2);
}
.card-btn:disabled {
    background: rgba(255, 255, 255, 0.02) !important;
    border: 1px solid rgba(245, 17, 17, 0.596) !important;
    color: #FFFFFF !important;
    opacity: 0.8 !important;
    cursor: not-allowed;
    box-shadow: none !important;
}

/* ================= WHY CHOOSE US ================= */
.why-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 25px;
}
.why-card {
    background: rgba(18, 25, 47, 0.6);
    border: 1px solid var(--border);
    padding: 35px;
    border-radius: var(--radius-medium);
    box-shadow: var(--shadow);
    transition: var(--transition);
}
.why-card:hover {
    transform: translateY(-5px);
    border-color: var(--border-hover);
}
.why-icon { font-size: 32px; margin-bottom: 16px; }
.why-card h3 { font-size: 19px; margin-bottom: 10px; color: var(--text); }
.why-card p { font-size: 14px; color: var(--text-secondary); }

/* ================= UPCOMING PIPELINE ================= */
.upcoming-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 30px;
}
@media (max-width: 500px) { .upcoming-grid { grid-template-columns: 1fr; } }
.upcoming-card {
    background: linear-gradient(135deg, rgba(27, 36, 65, 0.4) 0%, rgba(18, 25, 47, 0.4) 100%);
    border: 1px solid var(--border);
    padding: 40px;
    border-radius: var(--radius-large);
    position: relative;
    overflow: hidden;
}
.upcoming-tag {
    position: absolute;
    top: 25px; right: 25px;
    font-size: 11px; font-weight: 700; text-transform: uppercase;
    color: var(--primary); background: rgba(229, 57, 53, 0.1);
    padding: 4px 12px; border-radius: 999px;
}
.upcoming-card h3 { font-size: 22px; margin-bottom: 12px; padding-right: 80px; color: var(--text); }
.upcoming-card p { color: var(--text-secondary); font-size: 15px; }

/* ================= FAQ ACCORDION ================= */
.faq-container {
    max-width: 750px;
    margin: 0 auto;
}
.faq-item {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-small);
    margin-bottom: 16px;
    overflow: hidden;
    transition: var(--transition);
}
.faq-question {
    width: 100%;
    padding: 22px 30px;
    background: transparent;
    border: none;
    color: var(--text);
    font-size: 16px;
    font-weight: 600;
    text-align: left;
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
}
.faq-icon {
    font-size: 18px; color: var(--text-secondary); transition: var(--transition);
}
.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s cubic-bezier(0.25, 0.8, 0.25, 1);
    background: rgba(0,0,0,0.1);
}
.faq-answer p {
    padding: 0 30px 24px;
    color: var(--text-secondary);
    font-size: 15px;
}
.faq-item.active { border-color: var(--border-hover); }
.faq-item.active .faq-icon { transform: rotate(45deg); color: var(--primary); }

/* ================= GLOBAL MASTER APP MODAL WINDOWS ================= */
.app-modal {
    position: fixed;
    top: 0; left: 0; width: 100%; height: 100%;
    background: rgba(11, 16, 32, 0.85);
    backdrop-filter: blur(25px);
    -webkit-backdrop-filter: blur(25px);
    z-index: 2000;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.4s cubic-bezier(0.25, 0.8, 0.25, 1);
    padding: 20px;
}
.app-modal.modal-visible {
    opacity: 1;
    pointer-events: auto;
}
.modal-container {
    background: var(--surface);
    border: 1px solid var(--border);
    width: 100%;
    max-width: 900px;
    height: 85vh;
    border-radius: var(--radius-large);
    box-shadow: 0 30px 70px rgba(0,0,0,0.6);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    transform: translateY(40px) scale(0.96);
    transition: transform 0.4s cubic-bezier(0.25, 0.8, 0.25, 1);
}
.app-modal.modal-visible .modal-container {
    transform: translateY(0) scale(1);
}
.modal-header {
    padding: 20px 35px;
    border-bottom: 1px solid var(--border);
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.modal-title {
    font-size: 20px;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 15px;
    color: var(--text);
}
.modal-close {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    font-size: 32px;
    cursor: pointer;
    line-height: 1;
    transition: var(--transition);
}
.modal-close:hover { color: var(--text); }
.modal-body {
    flex-grow: 1;
    padding: 40px 50px;
    display: flex;
    flex-direction: column;
    gap: 20px;
    overflow-y: auto;
}

/* ================= UTILITY MODALS TYPOGRAPHY LAYOUT ================= */
.text-layout h2 { font-size: 26px; text-align: left; margin-bottom: 15px; color: var(--text); }
.text-layout h3 { font-size: 18px; margin-top: 25px; margin-bottom: 10px; color: var(--text); }
.text-layout p { color: var(--text-secondary); font-size: 15px; line-height: 1.8; margin-bottom: 15px; }

/* ================= PREMIUM MODERN SUPPORT SCREEN ================= */
.premium-support-wrap {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 40vh;
}
.support-card-layout {
    text-align: center;
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--border);
    padding: 40px 60px;
    border-radius: var(--radius-medium);
    box-shadow: var(--shadow);
}
.support-card-layout h2 {
    font-size: 22px;
    color: var(--text-secondary);
    font-weight: 500;
    margin-bottom: 14px;
    text-transform: uppercase;
    letter-spacing: 1px;
}
.support-email-link {
    font-size: 32px;
    font-weight: 700;
    color: var(--text);
    text-decoration: none;
    transition: var(--transition);
}
.support-email-link:hover {
    color: var(--primary);
    text-shadow: 0 0 20px rgba(229, 57, 53, 0.3);
}

/* ================= PREMIUM FOOTER ================= */
footer {
    background: #060913;
    border-top: 1px solid var(--border);
    padding: 80px 8% 40px;
}
.footer-content {
    max-width: 1400px;
    margin: 0 auto 60px;
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 40px;
}
.footer-brand { max-width: 400px; }
.footer-logo { font-size: 28px; font-weight: 800; margin-bottom: 16px; }
.footer-logo span { color: var(--primary); }
.footer-brand p { color: var(--text-secondary); font-size: 15px; }
.footer-links { display: flex; flex-direction: column; gap: 12px; }
.footer-links h4 { font-size: 16px; margin-bottom: 8px; color: var(--text); }
.footer-links a,
.footer-btn-link {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 15px;
    font-weight: 500;
    text-align: left;
    cursor: pointer;
    transition: var(--transition);
    font-family: inherit;
    position: relative;
    padding-bottom: 4px;
    display: inline-block;
    width: max-content;
}

.footer-links a:hover,
.footer-btn-link:hover { 
    color: var(--primary); 
}

.footer-links a::after,
.footer-btn-link::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: 0;
    width: 0;
    height: 2px;
    background: var(--primary);
    transition: var(--transition);
}

.footer-links a:hover::after,
.footer-btn-link:hover::after {
    width: 100%;
}
.footer-bottom {
    max-width: 1400px;
    margin: 0 auto;
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.04);
    text-align: center;
}
.footer-bottom p { font-size: 13px; color: rgba(255, 255, 255, 0.3); }

/* ================= SCROLL REVEAL STYLES ================= */
.scroll-reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s cubic-bezier(0.25, 0.8, 0.25, 1), transform 0.8s cubic-bezier(0.25, 0.8, 0.25, 1);
}
.scroll-reveal.reveal-visible {
    opacity: 1;
    transform: translateY(0);
}

/* ================= ADAPTIVE RESPONSIVENESS ================= */
@media (max-width: 968px) {
    #hero {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 50px;
        padding-top: 60px;
    }
    .hero-badge { margin: 0 auto 20px; }
    #hero p { margin: 0 auto 35px; }
    .hero-buttons { justify-content: center; }
    .gradient-text { font-size: 46px; }
    .hero-visual { height: 350px; }
    section { padding: 70px 6%; }
    h2 { font-size: 34px; }
    .support-email-link { font-size: 22px; }
    .support-card-layout { padding: 30px 20px; }
}
@media (max-width: 600px) {
    nav ul { display: none; }
    .gradient-text { font-size: 36px; }
    #hero p { font-size: 16px; }
    .btn { width: 100%; }
    .hero-buttons { flex-direction: column; width: 100%; gap: 12px; }
}