/* ========================================
   iSpor - Modern SEO Site
   Designed for Google Lighthouse 100/100
   ======================================== */

/* --- CSS Variables --- */
:root {
    --primary: #6C5CE7;
    --primary-light: #A29BFE;
    --primary-dark: #5A4BD1;
    --accent: #00CEFF;
    --accent-glow: rgba(0, 206, 255, 0.3);
    --success: #00D68F;
    --warning: #FFA502;
    --danger: #FF4757;
    --bg-dark: #0A0A1A;
    --bg-card: #12122A;
    --bg-card-hover: #1A1A3E;
    --bg-surface: #16163A;
    --text-primary: #FFFFFF;
    --text-secondary: #A0A0C0;
    --text-muted: #8888BB;
    --border: rgba(255, 255, 255, 0.06);
    --border-hover: rgba(108, 92, 231, 0.4);
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-xl: 28px;
    --shadow-sm: 0 2px 8px rgba(0,0,0,0.2);
    --shadow-md: 0 8px 32px rgba(0,0,0,0.3);
    --shadow-lg: 0 16px 64px rgba(0,0,0,0.4);
    --shadow-glow: 0 0 40px rgba(108, 92, 231, 0.2);
    --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --font: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-mono: 'JetBrains Mono', monospace;
}

/* --- Reset & Base --- */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font);
    background: var(--bg-dark);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

a {
    color: inherit;
    text-decoration: none;
}

ul { list-style: none; }
img { max-width: 100%; height: auto; }

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* --- Header --- */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(10, 10, 26, 0.8);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
    transition: var(--transition);
}

.header.scrolled {
    background: rgba(10, 10, 26, 0.95);
    box-shadow: var(--shadow-md);
}

.nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 800;
    font-size: 1.3rem;
}

.logo-icon {
    font-size: 1.6rem;
    animation: pulse-icon 2s ease-in-out infinite;
}

@keyframes pulse-icon {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.1); }
}

.logo-badge {
    font-size: 0.6rem;
    font-weight: 700;
    background: var(--success);
    color: #000;
    padding: 2px 8px;
    border-radius: 20px;
    letter-spacing: 0.05em;
}

.nav-links {
    display: flex;
    gap: 32px;
}

.nav-link {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-secondary);
    transition: var(--transition);
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary);
    transition: var(--transition);
}

.nav-link:hover {
    color: var(--text-primary);
}

.nav-link:hover::after {
    width: 100%;
}

.nav-cta {
    font-size: 0.85rem;
    font-weight: 600;
    padding: 10px 24px;
    background: var(--primary);
    border-radius: var(--radius-sm);
    transition: var(--transition);
}

.nav-cta:hover {
    background: var(--primary-dark);
    transform: translateY(-1px);
    box-shadow: var(--shadow-glow);
}

.mobile-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
}

.mobile-toggle span {
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    transition: var(--transition);
    border-radius: 2px;
}

/* --- Hero --- */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 72px;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    inset: 0;
    pointer-events: none;
}

.hero-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(100px);
    opacity: 0.5;
    animation: float 10s ease-in-out infinite;
}

.hero-orb-1 {
    width: 500px;
    height: 500px;
    background: var(--primary);
    top: -10%;
    right: -10%;
    animation-delay: 0s;
}

.hero-orb-2 {
    width: 400px;
    height: 400px;
    background: var(--accent);
    bottom: -5%;
    left: -5%;
    animation-delay: -3s;
    opacity: 0.3;
}

.hero-orb-3 {
    width: 300px;
    height: 300px;
    background: #FF6B6B;
    top: 40%;
    left: 30%;
    animation-delay: -6s;
    opacity: 0.2;
}

@keyframes float {
    0%, 100% { transform: translate(0, 0) scale(1); }
    33% { transform: translate(30px, -30px) scale(1.05); }
    66% { transform: translate(-20px, 20px) scale(0.95); }
}

.hero-grid {
    position: absolute;
    inset: 0;
    background-image: 
        linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
    background-size: 60px 60px;
    mask-image: radial-gradient(ellipse at center, black 30%, transparent 70%);
    -webkit-mask-image: radial-gradient(ellipse at center, black 30%, transparent 70%);
}

.hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 8px 20px;
    background: rgba(0, 214, 143, 0.1);
    border: 1px solid rgba(0, 214, 143, 0.2);
    border-radius: 50px;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--success);
    margin-bottom: 32px;
    animation: slideDown 0.6s ease-out;
}

.pulse {
    width: 8px;
    height: 8px;
    background: var(--success);
    border-radius: 50%;
    animation: pulse-dot 1.5s ease-in-out infinite;
}

@keyframes pulse-dot {
    0%, 100% { opacity: 1; box-shadow: 0 0 0 0 rgba(0, 214, 143, 0.4); }
    50% { opacity: 0.8; box-shadow: 0 0 0 8px rgba(0, 214, 143, 0); }
}

@keyframes slideDown {
    from { opacity: 0; transform: translateY(-20px); }
    to { opacity: 1; transform: translateY(0); }
}

.hero-title {
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    font-weight: 900;
    line-height: 1.1;
    margin-bottom: 24px;
    letter-spacing: -0.02em;
}

.hero-title-line {
    display: block;
}

.hero-title-gradient {
    background: linear-gradient(135deg, var(--primary-light), var(--accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-description {
    font-size: 1.15rem;
    color: var(--text-secondary);
    max-width: 550px;
    margin: 0 auto 40px;
    line-height: 1.7;
    animation: fadeIn 0.8s ease-out 0.3s both;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.hero-actions {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 56px;
    animation: fadeIn 0.8s ease-out 0.5s both;
}

/* --- Buttons --- */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 16px 32px;
    font-size: 1rem;
    font-weight: 600;
    font-family: var(--font);
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: white;
    box-shadow: 0 4px 20px rgba(108, 92, 231, 0.4);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(108, 92, 231, 0.5);
}

.btn-secondary {
    background: var(--bg-card);
    color: var(--text-primary);
    border: 1px solid var(--border);
}

.btn-secondary:hover {
    background: var(--bg-card-hover);
    border-color: var(--border-hover);
    transform: translateY(-2px);
}

.btn-outline {
    background: transparent;
    color: var(--primary-light);
    border: 1px solid var(--primary);
    padding: 12px 24px;
}

.btn-outline:hover {
    background: rgba(108, 92, 231, 0.1);
    transform: translateY(-1px);
}

.btn-sm {
    padding: 12px 24px;
    font-size: 0.9rem;
}

/* --- Hero Stats --- */
.hero-stats {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 32px;
    animation: fadeIn 0.8s ease-out 0.7s both;
}

.stat {
    text-align: center;
}

.stat-value {
    display: block;
    font-size: 1.5rem;
    font-weight: 800;
    background: linear-gradient(135deg, var(--text-primary), var(--primary-light));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-label {
    font-size: 0.8rem;
    color: var(--text-muted);
    font-weight: 500;
}

.stat-divider {
    width: 1px;
    height: 40px;
    background: var(--border);
}

/* --- Sections --- */
.section {
    padding: 100px 0;
    position: relative;
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-tag {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.15em;
    color: var(--primary-light);
    background: rgba(108, 92, 231, 0.1);
    padding: 6px 16px;
    border-radius: 50px;
    margin-bottom: 16px;
}

.section-title {
    font-size: clamp(1.8rem, 4vw, 2.8rem);
    font-weight: 800;
    margin-bottom: 16px;
    letter-spacing: -0.01em;
}

.section-desc {
    font-size: 1.05rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

/* --- Address Section --- */
.address-section {
    background: linear-gradient(180deg, var(--bg-dark), var(--bg-surface));
}

.address-card {
    position: relative;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    padding: 48px;
    text-align: center;
    overflow: hidden;
    transition: var(--transition);
    max-width: 700px;
    margin: 0 auto 48px;
}

.address-card:hover {
    border-color: var(--border-hover);
    box-shadow: var(--shadow-glow);
}

.address-card-glow {
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle at center, rgba(108, 92, 231, 0.08), transparent 50%);
    pointer-events: none;
}

.address-status {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--success);
    margin-bottom: 24px;
}

.status-dot {
    width: 10px;
    height: 10px;
    background: var(--success);
    border-radius: 50%;
    animation: pulse-dot 1.5s ease-in-out infinite;
}

.address-label {
    display: block;
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-bottom: 8px;
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.address-link-wrapper {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
    margin-bottom: 28px;
}

.address-link {
    font-family: var(--font-mono);
    font-size: 2rem;
    font-weight: 500;
    color: var(--text-primary);
    letter-spacing: 0.02em;
}

.address-highlight {
    color: var(--accent);
}

.copy-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 16px;
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    font-size: 0.8rem;
    font-family: var(--font);
    cursor: pointer;
    transition: var(--transition);
}

.copy-btn:hover {
    background: var(--bg-card-hover);
    color: var(--text-primary);
    border-color: var(--border-hover);
}

.address-go-btn {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    padding: 18px 48px;
    background: linear-gradient(135deg, var(--success), #00B87A);
    color: #000;
    font-size: 1.1rem;
    font-weight: 700;
    border-radius: var(--radius-md);
    margin-bottom: 28px;
    transition: var(--transition);
    box-shadow: 0 4px 20px rgba(0, 214, 143, 0.3);
}

.address-go-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 30px rgba(0, 214, 143, 0.4);
}

.address-meta {
    display: flex;
    justify-content: center;
    gap: 24px;
    flex-wrap: wrap;
}

.meta-item {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 0.8rem;
    color: var(--text-muted);
}

/* --- Alt Addresses --- */
.alt-addresses {
    max-width: 700px;
    margin: 0 auto;
}

.alt-title {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 16px;
    text-align: center;
}

.alt-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
}

.alt-card {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 14px 18px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    transition: var(--transition);
}

.alt-card:hover {
    border-color: var(--border-hover);
}

.alt-status {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    flex-shrink: 0;
}

.alt-status.active { background: var(--success); }
.alt-status.inactive { background: var(--danger); }

.alt-card code {
    font-family: var(--font-mono);
    font-size: 0.85rem;
    color: var(--text-primary);
    flex: 1;
}

.alt-tag {
    font-size: 0.7rem;
    font-weight: 600;
    color: var(--success);
    background: rgba(0, 214, 143, 0.1);
    padding: 3px 10px;
    border-radius: 20px;
}

.alt-tag.inactive-tag {
    color: var(--danger);
    background: rgba(255, 71, 87, 0.1);
}

.alt-status.next { background: #4A90D9; }

.alt-tag.next-tag {
    color: #4A90D9;
    background: rgba(74, 144, 217, 0.1);
}

/* --- Bonus Section --- */
.bonus-section {
    background: var(--bg-surface);
}

.bonus-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.bonus-card {
    position: relative;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 36px 28px;
    transition: var(--transition);
    overflow: hidden;
}

.bonus-card:hover {
    transform: translateY(-5px);
    border-color: var(--border-hover);
    box-shadow: var(--shadow-glow);
}

.bonus-card-featured {
    border-color: var(--primary);
    background: linear-gradient(180deg, rgba(108, 92, 231, 0.1), var(--bg-card));
}

.bonus-card-ribbon {
    position: absolute;
    top: 18px;
    right: -35px;
    background: var(--primary);
    color: white;
    font-size: 0.65rem;
    font-weight: 700;
    padding: 4px 40px;
    transform: rotate(45deg);
    letter-spacing: 0.1em;
}

.bonus-icon {
    font-size: 2.5rem;
    margin-bottom: 16px;
}

.bonus-title {
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 8px;
}

.bonus-amount {
    font-size: 2.5rem;
    font-weight: 900;
    background: linear-gradient(135deg, var(--primary-light), var(--accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 12px;
}

.bonus-desc {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: 16px;
    line-height: 1.6;
}

.bonus-features {
    margin-bottom: 24px;
}

.bonus-features li {
    font-size: 0.85rem;
    color: var(--text-secondary);
    padding: 4px 0;
}

/* --- Steps (How To) --- */
.howto-section {
    background: linear-gradient(180deg, var(--bg-surface), var(--bg-dark));
}

.steps {
    max-width: 650px;
    margin: 0 auto;
}

.step {
    display: flex;
    gap: 28px;
    align-items: flex-start;
}

.step-number {
    font-size: 2.5rem;
    font-weight: 900;
    color: var(--primary);
    opacity: 0.3;
    flex-shrink: 0;
    line-height: 1;
    min-width: 60px;
}

.step-content h3 {
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 8px;
}

.step-content p {
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.7;
}

.step-line {
    width: 2px;
    height: 40px;
    background: linear-gradient(180deg, var(--primary), transparent);
    margin: 8px 0 8px 29px;
    opacity: 0.3;
}

/* --- Features Grid --- */
.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.feature-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 32px 24px;
    transition: var(--transition);
}

.feature-card:hover {
    transform: translateY(-4px);
    border-color: var(--border-hover);
    box-shadow: var(--shadow-glow);
}

.feature-icon {
    font-size: 2rem;
    margin-bottom: 16px;
}

.feature-card h3 {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 8px;
}

.feature-card p {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* --- FAQ --- */
.faq-section {
    background: var(--bg-surface);
}

.faq-list {
    max-width: 750px;
    margin: 0 auto;
}

.faq-item {
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    margin-bottom: 12px;
    overflow: hidden;
    transition: var(--transition);
}

.faq-item:hover {
    border-color: var(--border-hover);
}

.faq-item.active {
    border-color: var(--primary);
    background: rgba(108, 92, 231, 0.05);
}

.faq-question {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    padding: 20px 24px;
    background: none;
    border: none;
    color: var(--text-primary);
    font-size: 1rem;
    font-weight: 600;
    font-family: var(--font);
    cursor: pointer;
    text-align: left;
    transition: var(--transition);
}

.faq-question:hover {
    color: var(--primary-light);
}

.faq-chevron {
    transition: var(--transition);
    flex-shrink: 0;
    color: var(--text-muted);
}

.faq-item.active .faq-chevron {
    transform: rotate(180deg);
    color: var(--primary);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease-out;
}

.faq-answer p {
    padding: 0 24px 20px;
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.7;
}

/* --- Footer --- */
.footer {
    background: var(--bg-dark);
    border-top: 1px solid var(--border);
    padding: 60px 0 30px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 48px;
    margin-bottom: 40px;
}

.footer-brand .logo {
    margin-bottom: 16px;
}

.footer-desc {
    font-size: 0.9rem;
    color: var(--text-muted);
    line-height: 1.7;
    max-width: 350px;
}

.footer-links-group h3 {
    font-size: 0.85rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--text-secondary);
    margin-bottom: 16px;
}

.footer-links-group li {
    margin-bottom: 8px;
}

.footer-links-group a {
    font-size: 0.9rem;
    color: var(--text-muted);
    transition: var(--transition);
}

.footer-links-group a:hover {
    color: var(--primary-light);
}

.footer-bottom {
    border-top: 1px solid var(--border);
    padding-top: 24px;
    text-align: center;
}

.footer-bottom p {
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-bottom: 4px;
}

/* --- Mobile Responsive --- */
@media (max-width: 900px) {
    .bonus-grid, .features-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 32px;
    }
    
    .alt-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .nav-links, .nav-cta {
        display: none;
    }
    
    .mobile-toggle {
        display: flex;
    }
    
    .nav-links.active {
        display: flex;
        flex-direction: column;
        position: absolute;
        top: 72px;
        left: 0;
        right: 0;
        background: rgba(10, 10, 26, 0.98);
        padding: 24px;
        gap: 20px;
        border-bottom: 1px solid var(--border);
        backdrop-filter: blur(20px);
    }
    
    .hero {
        min-height: auto;
        padding: 120px 0 80px;
    }
    
    .hero-stats {
        flex-direction: column;
        gap: 16px;
    }
    
    .stat-divider {
        width: 40px;
        height: 1px;
    }
    
    .address-card {
        padding: 28px 20px;
    }
    
    .address-link {
        font-size: 1.4rem;
    }
    
    .address-link-wrapper {
        flex-direction: column;
        gap: 12px;
    }
    
    .address-meta {
        flex-direction: column;
        align-items: center;
        gap: 12px;
    }

    .hero-actions {
        flex-direction: column;
        align-items: center;
    }
    
    .section {
        padding: 60px 0;
    }
}

/* --- Animations --- */
@media (prefers-reduced-motion: no-preference) {
    .bonus-card,
    .feature-card,
    .step,
    .faq-item {
        opacity: 0;
        transform: translateY(20px);
        transition: opacity 0.5s ease, transform 0.5s ease, border-color 0.3s ease, box-shadow 0.3s ease;
    }
    
    .bonus-card.visible,
    .feature-card.visible,
    .step.visible,
    .faq-item.visible {
        opacity: 1;
        transform: translateY(0);
    }
}