/* GoalSense - Tech/Gaming Dark Theme */
/* Design: Dark theme with neon accents, soft corners, generous spacing */

:root {
    --bg-primary: #0a0e17;
    --bg-secondary: #111827;
    --bg-card: #1a1f2e;
    --bg-elevated: #242b3d;
    --text-primary: #ffffff;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    --accent-primary: #6ba3ff;
    --accent-secondary: #4ade80;
    --accent-tertiary: #f97316;
    --accent-glow: rgba(107, 163, 255, 0.3);
    --border-color: rgba(107, 163, 255, 0.2);
    --gradient-primary: linear-gradient(135deg, #6ba3ff 0%, #4ade80 100%);
    --gradient-hero: linear-gradient(180deg, #0a0e17 0%, #111827 50%, #1a1f2e 100%);
    --shadow-glow: 0 0 30px rgba(107, 163, 255, 0.15);
    --shadow-card: 0 4px 20px rgba(0, 0, 0, 0.3);
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --transition: all 0.3s ease;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
}

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

a:hover {
    color: var(--accent-secondary);
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(10, 14, 23, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    padding: 15px 0;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--text-primary);
    white-space: nowrap;
}

.nav-logo svg {
    width: 32px;
    height: 32px;
    flex-shrink: 0;
}

.nav-menu {
    display: flex;
    gap: 30px;
    list-style: none;
    flex-shrink: 0;
}

.nav-menu a {
    color: var(--text-secondary);
    font-weight: 500;
    padding: 8px 0;
    position: relative;
    white-space: nowrap;
}

.nav-menu a:hover,
.nav-menu a.active {
    color: var(--accent-primary);
}

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

.nav-menu a:hover::after,
.nav-menu a.active::after {
    width: 100%;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: 5px;
}

.nav-toggle span {
    width: 25px;
    height: 3px;
    background: var(--text-primary);
    border-radius: 2px;
    transition: var(--transition);
}

/* Mobile Nav */
@media (max-width: 768px) {
    .nav-toggle {
        display: flex;
    }

    .nav-menu {
        position: fixed;
        top: 65px;
        left: 0;
        right: 0;
        background: var(--bg-secondary);
        flex-direction: column;
        padding: 20px;
        gap: 15px;
        transform: translateY(-100%);
        opacity: 0;
        pointer-events: none;
        transition: var(--transition);
        border-bottom: 1px solid var(--border-color);
    }

    .nav-menu.active {
        transform: translateY(0);
        opacity: 1;
        pointer-events: all;
    }

    .nav-menu a {
        display: block;
        padding: 12px 0;
    }
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 120px 0 80px;
    background: var(--gradient-hero);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background:
        radial-gradient(circle at 20% 80%, rgba(107, 163, 255, 0.1) 0%, transparent 40%),
        radial-gradient(circle at 80% 20%, rgba(74, 222, 128, 0.08) 0%, transparent 40%);
    pointer-events: none;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-text {
    text-align: left;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: var(--bg-card);
    padding: 8px 16px;
    border-radius: 50px;
    font-size: 0.875rem;
    color: var(--accent-primary);
    margin-bottom: 24px;
    border: 1px solid var(--border-color);
}

.hero-title {
    font-size: clamp(2.5rem, 5vw, 3.5rem);
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 20px;
}

.hero-title span {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-description {
    font-size: 1.125rem;
    color: var(--text-secondary);
    margin-bottom: 32px;
    max-width: 500px;
}

.hero-buttons {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

/* Device Mockup */
.hero-device {
    display: flex;
    justify-content: center;
    align-items: center;
}

.device-mockup {
    position: relative;
    max-width: 280px;
    width: 100%;
}

.device-frame {
    position: relative;
    background: linear-gradient(145deg, #2a2f3d, #1a1f2e);
    border-radius: 36px;
    padding: 12px;
    box-shadow: var(--shadow-glow), var(--shadow-card);
}

.device-frame::before {
    content: '';
    position: absolute;
    top: 12px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 24px;
    background: #0a0e17;
    border-radius: 0 0 12px 12px;
    z-index: 2;
}

.device-screen {
    border-radius: 24px;
    overflow: hidden;
    background: #000;
}

.device-screen img {
    width: 100%;
    height: auto;
    display: block;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 14px 28px;
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: var(--transition);
    border: none;
    text-decoration: none;
    white-space: nowrap;
}

.btn-primary {
    background: var(--gradient-primary);
    color: var(--bg-primary);
    box-shadow: 0 4px 15px rgba(107, 163, 255, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 25px rgba(107, 163, 255, 0.4);
    color: var(--bg-primary);
}

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

.btn-secondary:hover {
    background: var(--bg-elevated);
    border-color: var(--accent-primary);
    color: var(--text-primary);
}

.btn svg {
    width: 20px;
    height: 20px;
}

/* Features Section */
.features {
    padding: 100px 0;
    background: var(--bg-secondary);
}

.section-header {
    text-align: center;
    max-width: 600px;
    margin: 0 auto 60px;
}

.section-label {
    display: inline-block;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--accent-primary);
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: 12px;
}

.section-title {
    font-size: clamp(2rem, 4vw, 2.75rem);
    font-weight: 700;
    margin-bottom: 16px;
}

.section-description {
    color: var(--text-secondary);
    font-size: 1.1rem;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 24px;
}

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

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

.feature-icon {
    width: 56px;
    height: 56px;
    border-radius: var(--radius-md);
    background: linear-gradient(135deg, rgba(107, 163, 255, 0.2), rgba(74, 222, 128, 0.1));
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
}

.feature-icon svg {
    width: 28px;
    height: 28px;
    color: var(--accent-primary);
}

.feature-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 12px;
}

.feature-text {
    color: var(--text-secondary);
    text-align: left;
    line-height: 1.7;
}

/* Screenshots Section */
.screenshots {
    padding: 100px 0;
    background: var(--bg-primary);
    max-height: 600px;
    overflow: hidden;
}

.screenshots-wrapper {
    position: relative;
    max-width: 900px;
    margin: 0 auto;
}

.carousel-container {
    position: relative;
    height: 380px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.carousel-track {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100%;
    position: relative;
}

.carousel-slide {
    position: absolute;
    transition: all 0.5s ease;
    opacity: 0;
    transform: scale(0.8);
}

.carousel-slide.active {
    opacity: 1;
    transform: scale(1);
    z-index: 2;
}

.carousel-slide.prev,
.carousel-slide.next {
    opacity: 0.4;
    z-index: 1;
}

.carousel-slide.prev {
    transform: translateX(-140px) scale(0.75);
}

.carousel-slide.next {
    transform: translateX(140px) scale(0.75);
}

.screenshot-device {
    width: 200px;
    background: linear-gradient(145deg, #2a2f3d, #1a1f2e);
    border-radius: 28px;
    padding: 8px;
    box-shadow: var(--shadow-card);
}

.screenshot-device img {
    width: 100%;
    height: auto;
    border-radius: 20px;
    display: block;
    cursor: pointer;
}

.carousel-nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
    z-index: 10;
}

.carousel-nav:hover {
    background: var(--accent-primary);
    color: var(--bg-primary);
}

.carousel-nav.prev {
    left: 0;
}

.carousel-nav.next {
    right: 0;
}

.carousel-dots {
    display: flex;
    justify-content: center;
    gap: 10px;
    margin-top: 24px;
}

.carousel-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--bg-elevated);
    border: none;
    cursor: pointer;
    transition: var(--transition);
}

.carousel-dot.active {
    background: var(--accent-primary);
    width: 28px;
    border-radius: 5px;
}

/* Lightbox */
.lightbox {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.95);
    z-index: 2000;
    display: none;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.lightbox.active {
    display: flex;
}

.lightbox-content {
    max-width: 90vw;
    max-height: 90vh;
    position: relative;
}

.lightbox-content img {
    max-width: 100%;
    max-height: 85vh;
    border-radius: var(--radius-lg);
}

.lightbox-close {
    position: absolute;
    top: -40px;
    right: 0;
    background: none;
    border: none;
    color: var(--text-primary);
    font-size: 2rem;
    cursor: pointer;
    padding: 10px;
}

/* CTA Section */
.cta-section {
    padding: 100px 0;
    background: var(--bg-secondary);
    text-align: center;
}

.cta-box {
    background: linear-gradient(135deg, rgba(107, 163, 255, 0.1), rgba(74, 222, 128, 0.05));
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    padding: 60px 40px;
    max-width: 800px;
    margin: 0 auto;
}

.cta-title {
    font-size: clamp(1.75rem, 3vw, 2.25rem);
    font-weight: 700;
    margin-bottom: 16px;
}

.cta-text {
    color: var(--text-secondary);
    margin-bottom: 32px;
    font-size: 1.1rem;
}

.cta-buttons {
    display: flex;
    justify-content: center;
    gap: 16px;
    flex-wrap: wrap;
}

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

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 60px;
    margin-bottom: 40px;
}

.footer-brand {
    max-width: 300px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 16px;
}

.footer-logo svg {
    width: 28px;
    height: 28px;
}

.footer-description {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.7;
    text-align: left;
}

.footer-links h4 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 20px;
    color: var(--text-primary);
}

.footer-links ul {
    list-style: none;
}

.footer-links li {
    margin-bottom: 12px;
}

.footer-links a {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

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

.footer-bottom {
    padding-top: 30px;
    border-top: 1px solid var(--border-color);
    text-align: center;
    color: var(--text-muted);
    font-size: 0.9rem;
}

/* Page Header */
.page-header {
    padding: 140px 0 60px;
    background: var(--gradient-hero);
    text-align: center;
}

.page-title {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 700;
    margin-bottom: 12px;
}

.page-subtitle {
    color: var(--text-secondary);
    font-size: 1.1rem;
}

/* Content Sections */
.content-section {
    padding: 80px 0;
    background: var(--bg-secondary);
}

.content-container {
    max-width: 800px;
    margin: 0 auto;
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    padding: 48px;
    border: 1px solid var(--border-color);
}

.content-container h2 {
    font-size: 1.5rem;
    font-weight: 600;
    margin: 32px 0 16px;
    color: var(--accent-primary);
}

.content-container h2:first-child {
    margin-top: 0;
}

.content-container p {
    color: var(--text-secondary);
    margin-bottom: 16px;
    text-align: left;
    line-height: 1.8;
}

.content-container ul,
.content-container ol {
    color: var(--text-secondary);
    margin-bottom: 16px;
    padding-left: 24px;
    text-align: left;
}

.content-container li {
    margin-bottom: 8px;
    line-height: 1.7;
}

.content-container a {
    color: var(--accent-primary);
}

.content-container a:hover {
    text-decoration: underline;
}

.last-updated {
    color: var(--text-muted);
    font-size: 0.9rem;
    margin-bottom: 32px;
    text-align: left;
}

/* Contact Form */
.contact-section {
    padding: 80px 0;
    background: var(--bg-secondary);
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 48px;
    max-width: 1000px;
    margin: 0 auto;
}

.contact-info {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    padding: 40px;
    border: 1px solid var(--border-color);
}

.contact-info h2 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 16px;
}

.contact-info p {
    color: var(--text-secondary);
    margin-bottom: 32px;
    text-align: left;
    line-height: 1.7;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    margin-bottom: 24px;
}

.contact-icon {
    width: 44px;
    height: 44px;
    border-radius: var(--radius-md);
    background: linear-gradient(135deg, rgba(107, 163, 255, 0.2), rgba(74, 222, 128, 0.1));
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.contact-icon svg {
    width: 22px;
    height: 22px;
    color: var(--accent-primary);
}

.contact-item-text {
    text-align: left;
}

.contact-item-text h4 {
    font-size: 0.95rem;
    font-weight: 600;
    margin-bottom: 4px;
}

.contact-item-text p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin: 0;
}

.contact-form-container {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    padding: 40px;
    border: 1px solid var(--border-color);
}

.contact-form-container h2 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 24px;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    font-size: 0.95rem;
    font-weight: 500;
    margin-bottom: 8px;
    color: var(--text-primary);
    text-align: left;
}

.form-control {
    width: 100%;
    padding: 14px 16px;
    background: var(--bg-elevated);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-size: 1rem;
    transition: var(--transition);
}

.form-control:focus {
    outline: none;
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 3px rgba(107, 163, 255, 0.1);
}

.form-control::placeholder {
    color: var(--text-muted);
}

textarea.form-control {
    resize: vertical;
    min-height: 150px;
}

.file-input-wrapper {
    position: relative;
}

.file-input-wrapper input[type="file"] {
    position: absolute;
    width: 100%;
    height: 100%;
    opacity: 0;
    cursor: pointer;
}

.file-input-label {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 14px 16px;
    background: var(--bg-elevated);
    border: 2px dashed var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    cursor: pointer;
    transition: var(--transition);
}

.file-input-label:hover {
    border-color: var(--accent-primary);
    color: var(--accent-primary);
}

.file-input-label svg {
    width: 20px;
    height: 20px;
}

.form-submit {
    width: 100%;
    padding: 16px;
    margin-top: 8px;
}

.form-message {
    padding: 16px;
    border-radius: var(--radius-md);
    margin-top: 20px;
    text-align: center;
    display: none;
}

.form-message.success {
    display: block;
    background: rgba(74, 222, 128, 0.1);
    border: 1px solid var(--accent-secondary);
    color: var(--accent-secondary);
}

.form-message.error {
    display: block;
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid #ef4444;
    color: #ef4444;
}

/* Privacy Accept Button */
.privacy-accept-wrapper {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
    padding: 20px;
    z-index: 1000;
    display: none;
}

.privacy-accept-wrapper.show {
    display: block;
}

.privacy-accept-content {
    max-width: 600px;
    margin: 0 auto;
    text-align: center;
}

.privacy-accept-text {
    color: var(--text-secondary);
    margin-bottom: 16px;
    font-size: 0.95rem;
}

.btn-accept {
    background: var(--accent-secondary);
    color: var(--bg-primary);
    font-weight: 700;
    padding: 16px 48px;
    font-size: 1.1rem;
}

.btn-accept:hover {
    background: #3dd06b;
    color: var(--bg-primary);
}

/* Responsive */
@media (max-width: 992px) {
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 40px;
    }

    .hero-text {
        text-align: center;
    }

    .hero-description {
        margin: 0 auto 32px;
    }

    .hero-buttons {
        justify-content: center;
    }

    .device-mockup {
        max-width: 240px;
    }

    .footer-content {
        grid-template-columns: 1fr;
        gap: 40px;
        text-align: center;
    }

    .footer-brand {
        max-width: 100%;
    }

    .footer-description {
        text-align: center;
    }

    .contact-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .hero {
        padding: 100px 0 60px;
        min-height: auto;
    }

    .hero-title {
        font-size: 2rem;
    }

    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }

    .btn {
        width: 100%;
        max-width: 280px;
    }

    .device-mockup {
        max-width: 200px;
    }

    .features {
        padding: 60px 0;
    }

    .screenshots {
        padding: 60px 0;
        max-height: 500px;
    }

    .carousel-container {
        height: 320px;
    }

    .screenshot-device {
        width: 160px;
    }

    .carousel-slide.prev {
        transform: translateX(-100px) scale(0.7);
    }

    .carousel-slide.next {
        transform: translateX(100px) scale(0.7);
    }

    .carousel-nav {
        width: 36px;
        height: 36px;
    }

    .cta-section {
        padding: 60px 0;
    }

    .cta-box {
        padding: 40px 24px;
    }

    .content-container {
        padding: 32px 24px;
    }

    .contact-info,
    .contact-form-container {
        padding: 28px;
    }

    .page-header {
        padding: 120px 0 40px;
    }
}

@media (max-width: 480px) {
    .nav-logo {
        font-size: 1.2rem;
    }

    .hero-title {
        font-size: 1.75rem;
    }

    .section-title {
        font-size: 1.5rem;
    }

    .feature-card {
        padding: 24px;
    }

    .carousel-container {
        height: 280px;
    }

    .screenshot-device {
        width: 140px;
    }

    .carousel-slide.prev,
    .carousel-slide.next {
        display: none;
    }
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.animate-in {
    animation: fadeInUp 0.6s ease forwards;
}

/* Image Loading */
.img-loading {
    filter: blur(5px);
    transition: filter 0.3s ease;
}

.img-loaded {
    filter: blur(0);
}