/* CSS Reset & Variables */
:root {
    --bg-dark: #070a13;
    --bg-card: rgba(15, 23, 42, 0.45);
    --bg-card-hover: rgba(30, 41, 59, 0.6);
    --border-color: rgba(255, 255, 255, 0.08);
    --border-color-hover: rgba(99, 102, 241, 0.35);
    
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    
    --primary-gradient: linear-gradient(135deg, #3b82f6 0%, #8b5cf6 100%);
    --accent-glow: radial-gradient(circle, rgba(99, 102, 241, 0.15) 0%, transparent 70%);
    
    --primary: #3b82f6;
    --primary-hover: #2563eb;
    --accent: #8b5cf6;
    --accent-rgb: 139, 92, 246;
    
    --font-heading: 'Outfit', sans-serif;
    --font-body: 'Plus Jakarta Sans', sans-serif;
    
    --transition-smooth: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    background-color: var(--bg-dark);
    color: var(--text-primary);
    font-family: var(--font-body);
    line-height: 1.6;
    min-height: 100vh;
    overflow-x: hidden;
    position: relative;
}

/* Background Effects */
.glow-bg {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 10% 20%, rgba(59, 130, 246, 0.08) 0%, transparent 40%),
        radial-gradient(circle at 90% 80%, rgba(139, 92, 246, 0.08) 0%, transparent 40%);
    pointer-events: none;
    z-index: -2;
    transition: transform 0.2s ease-out;
}

.grid-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        linear-gradient(rgba(255, 255, 255, 0.015) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.015) 1px, transparent 1px);
    background-size: 40px 40px;
    background-position: center;
    mask-image: radial-gradient(circle at center, black, transparent 80%);
    -webkit-mask-image: radial-gradient(circle at center, black, transparent 80%);
    pointer-events: none;
    z-index: -1;
}

/* App Container */
.app-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

/* Header */
.header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 2rem 0;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.logo-icon {
    width: 32px;
    height: 32px;
}

.logo-icon svg {
    width: 100%;
    height: 100%;
}

.logo-text {
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 1.5rem;
    letter-spacing: -0.02em;
    background: linear-gradient(to right, #ffffff, #d8b4fe);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.logo-text .accent-dot {
    color: var(--primary);
    -webkit-text-fill-color: initial;
    display: inline-block;
}

.project-tag {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-color);
    padding: 0.5rem 1rem;
    border-radius: 9999px;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-secondary);
    backdrop-filter: blur(8px);
}

.tag-dot {
    width: 8px;
    height: 8px;
    background-color: #10b981;
    border-radius: 50%;
    box-shadow: 0 0 8px #10b981;
    animation: pulse-dot 2s infinite;
}

/* Hero Section */
.hero-section {
    padding: 6rem 0 4rem;
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.hero-title {
    font-family: var(--font-heading);
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1.15;
    letter-spacing: -0.03em;
    margin-bottom: 1.5rem;
    color: #ffffff;
}

.gradient-text {
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    position: relative;
    display: inline-block;
}

.hero-subtitle {
    font-size: 1.2rem;
    color: var(--text-secondary);
    max-width: 650px;
    margin-bottom: 2.5rem;
    font-weight: 400;
}

.cta-group {
    display: flex;
    gap: 1rem;
    justify-content: center;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.85rem 1.75rem;
    border-radius: 12px;
    font-size: 1rem;
    font-weight: 600;
    text-decoration: none;
    transition: var(--transition-smooth);
    cursor: pointer;
}

.btn-primary {
    background: var(--primary-gradient);
    color: #ffffff;
    box-shadow: 0 4px 20px rgba(99, 102, 241, 0.35);
    border: none;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 24px rgba(99, 102, 241, 0.45);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.04);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    backdrop-filter: blur(8px);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.08);
    border-color: rgba(255, 255, 255, 0.2);
    transform: translateY(-2px);
}

.btn-arrow {
    width: 18px;
    height: 18px;
    transition: transform 0.2s ease;
}

.btn-primary:hover .btn-arrow {
    transform: translateX(4px);
}

/* Features Section */
.features-section {
    padding: 6rem 0;
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-label {
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 0.75rem;
    display: inline-block;
}

.section-title {
    font-family: var(--font-heading);
    font-size: 2.25rem;
    font-weight: 700;
    color: #ffffff;
    margin-bottom: 1rem;
}

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

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.feature-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    padding: 2.5rem 2rem;
    position: relative;
    overflow: hidden;
    backdrop-filter: blur(12px);
    transition: var(--transition-smooth);
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(800px circle at var(--mouse-x, 0px) var(--mouse-y, 0px), rgba(99, 102, 241, 0.08), transparent 40%);
    opacity: 0;
    transition: opacity 0.5s ease;
    pointer-events: none;
    z-index: 0;
}

.feature-card:hover {
    transform: translateY(-6px);
    border-color: var(--border-color-hover);
    background: var(--bg-card-hover);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.feature-card:hover::before {
    opacity: 1;
}

.feature-icon {
    width: 48px;
    height: 48px;
    background: rgba(99, 102, 241, 0.1);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary);
    margin-bottom: 1.5rem;
    position: relative;
    z-index: 1;
    transition: var(--transition-smooth);
}

.feature-card:hover .feature-icon {
    background: var(--primary);
    color: #ffffff;
    transform: scale(1.05);
}

.feature-icon svg {
    width: 24px;
    height: 24px;
}

.feature-card h3 {
    font-family: var(--font-heading);
    font-size: 1.25rem;
    font-weight: 600;
    color: #ffffff;
    margin-bottom: 0.75rem;
    position: relative;
    z-index: 1;
}

.feature-card p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.6;
    position: relative;
    z-index: 1;
}

/* Contact Section */
.contact-section {
    padding: 4rem 0 6rem;
    display: flex;
    justify-content: center;
}

.contact-card {
    background: radial-gradient(circle at 50% 0%, rgba(99, 102, 241, 0.1) 0%, rgba(15, 23, 42, 0.5) 100%);
    border: 1px solid var(--border-color);
    border-radius: 24px;
    padding: 3.5rem 2rem;
    text-align: center;
    max-width: 600px;
    width: 100%;
    backdrop-filter: blur(12px);
    position: relative;
    overflow: hidden;
}

.contact-card::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--primary-gradient);
}

.contact-illustration {
    position: relative;
    width: 80px;
    height: 80px;
    margin: 0 auto 2rem;
    display: flex;
    align-items: center;
    justify-content: center;
}

.pulse-ring {
    position: absolute;
    width: 100%;
    height: 100%;
    border: 2px solid rgba(99, 102, 241, 0.3);
    border-radius: 50%;
    animation: pulse-ring 2.5s cubic-bezier(0.215, 0.610, 0.355, 1) infinite;
}

.pulse-ring.delay-1 {
    animation-delay: 0.8s;
}

.pulse-ring.delay-2 {
    animation-delay: 1.6s;
}

.pulse-core {
    width: 48px;
    height: 48px;
    background: var(--primary-gradient);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #ffffff;
    box-shadow: 0 0 20px rgba(99, 102, 241, 0.4);
    z-index: 2;
}

.pulse-core svg {
    width: 22px;
    height: 22px;
}

.contact-card h3 {
    font-family: var(--font-heading);
    font-size: 1.75rem;
    font-weight: 700;
    margin-bottom: 0.75rem;
}

.contact-card p {
    color: var(--text-secondary);
    margin-bottom: 2rem;
    font-size: 1rem;
    max-width: 450px;
    margin-left: auto;
    margin-right: auto;
}

.email-box {
    display: inline-flex;
    align-items: center;
    background: rgba(0, 0, 0, 0.2);
    border: 1px solid var(--border-color);
    padding: 0.5rem 0.5rem 0.5rem 1.25rem;
    border-radius: 12px;
    gap: 1rem;
    max-width: 100%;
    transition: var(--transition-smooth);
}

.email-box:hover {
    border-color: rgba(99, 102, 241, 0.4);
    box-shadow: 0 0 15px rgba(99, 102, 241, 0.1);
}

.email-link {
    color: var(--text-primary);
    text-decoration: none;
    font-weight: 600;
    font-size: 1.1rem;
    transition: var(--transition-smooth);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

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

.copy-btn {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    padding: 0.6rem;
    border-radius: 8px;
    cursor: pointer;
    transition: var(--transition-smooth);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}

.copy-btn:hover {
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-primary);
    border-color: rgba(255, 255, 255, 0.2);
}

.copy-btn svg {
    width: 18px;
    height: 18px;
}

/* Tooltip */
.tooltip {
    position: absolute;
    bottom: 125%;
    left: 50%;
    transform: translateX(-50%) translateY(5px);
    background: #0f172a;
    color: #ffffff;
    padding: 0.35rem 0.75rem;
    border-radius: 6px;
    font-size: 0.75rem;
    font-weight: 600;
    pointer-events: none;
    opacity: 0;
    transition: var(--transition-smooth);
    white-space: nowrap;
    border: 1px solid var(--border-color);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
}

.copy-btn:hover .tooltip {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
}

/* Footer */
.footer {
    border-top: 1px solid var(--border-color);
    padding: 2.5rem 0;
    margin-top: auto;
    color: var(--text-muted);
    font-size: 0.875rem;
}

.footer-top {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.5rem;
}

.footer-top p {
    color: var(--text-secondary);
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
}

/* Animations */
@keyframes pulse-dot {
    0% {
        transform: scale(0.9);
        box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.7);
    }
    70% {
        transform: scale(1.1);
        box-shadow: 0 0 0 8px rgba(16, 185, 129, 0);
    }
    100% {
        transform: scale(0.9);
        box-shadow: 0 0 0 0 rgba(16, 185, 129, 0);
    }
}

@keyframes pulse-ring {
    0% {
        transform: scale(0.5);
        opacity: 1;
    }
    80%, 100% {
        transform: scale(1.8);
        opacity: 0;
    }
}

/* Pulsing SVG elements */
.pulse-path {
    stroke-dasharray: 20;
    stroke-dashoffset: 40;
    animation: dash 2.5s linear infinite;
}

@keyframes dash {
    to {
        stroke-dashoffset: 0;
    }
}

.shield-path {
    animation: glow-shield 3s ease-in-out infinite alternate;
}

@keyframes glow-shield {
    0% {
        filter: drop-shadow(0 0 1px rgba(99, 102, 241, 0.2));
    }
    100% {
        filter: drop-shadow(0 0 6px rgba(99, 102, 241, 0.6));
    }
}

/* Responsive Breakpoints */
@media (max-width: 768px) {
    .app-container {
        padding: 0 1.5rem;
    }
    
    .hero-section {
        padding: 4rem 0 3rem;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-subtitle {
        font-size: 1.1rem;
    }
    
    .features-section {
        padding: 4rem 0;
    }
    
    .section-title {
        font-size: 1.85rem;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-top, .footer-bottom {
        flex-direction: column;
        gap: 0.5rem;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .cta-group {
        flex-direction: column;
        width: 100%;
    }
    
    .btn {
        width: 100%;
        justify-content: center;
    }
    
    .header {
        flex-direction: column;
        gap: 1rem;
        align-items: flex-start;
    }
}