/* ============================================
   IT Servis Klaudis - Premium Landing Page
   ============================================ */

/* --- Custom Properties --- */
:root {
    --bg: #09090b;
    --bg-elevated: #111114;
    --bg-card: #16161a;
    --bg-card-hover: #1c1c21;
    --border: #27272a;
    --border-light: #3f3f46;
    --text: #fafafa;
    --text-muted: #a1a1aa;
    --text-subtle: #71717a;

    --blue: #3b82f6;
    --blue-glow: rgba(59, 130, 246, 0.15);
    --purple: #8b5cf6;
    --purple-glow: rgba(139, 92, 246, 0.15);
    --green: #22c55e;
    --green-glow: rgba(34, 197, 94, 0.15);
    --orange: #f97316;
    --orange-glow: rgba(249, 115, 22, 0.15);
    --cyan: #06b6d4;
    --cyan-glow: rgba(6, 182, 212, 0.15);
    --red: #ef4444;
    --red-glow: rgba(239, 68, 68, 0.15);

    --gradient-primary: linear-gradient(135deg, #3b82f6, #8b5cf6, #06b6d4);
    --gradient-text: linear-gradient(135deg, #60a5fa, #a78bfa, #22d3ee);

    --radius-sm: 8px;
    --radius: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;

    --shadow: 0 1px 3px rgba(0,0,0,0.3), 0 4px 6px rgba(0,0,0,0.2);
    --shadow-lg: 0 10px 30px rgba(0,0,0,0.4), 0 1px 3px rgba(0,0,0,0.2);

    --font: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-mono: 'JetBrains Mono', monospace;

    --ease: cubic-bezier(0.16, 1, 0.3, 1);
    --ease-bounce: cubic-bezier(0.34, 1.56, 0.64, 1);
}

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

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

img {
    max-width: 100%;
    display: block;
}

/* --- Utilities --- */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

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

/* --- Cursor Glow --- */
.cursor-glow {
    position: fixed;
    width: 600px;
    height: 600px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(59, 130, 246, 0.06) 0%, transparent 70%);
    pointer-events: none;
    z-index: 0;
    transform: translate(-50%, -50%);
    transition: opacity 0.3s;
    opacity: 0;
}

body:hover .cursor-glow {
    opacity: 1;
}

/* --- Navigation --- */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    padding: 16px 0;
    transition: all 0.4s var(--ease);
}

.nav--scrolled {
    background: rgba(9, 9, 11, 0.85);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    border-bottom: 1px solid var(--border);
    padding: 10px 0;
}

.nav__container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 32px;
}

.nav__logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.05rem;
    font-weight: 500;
    letter-spacing: -0.02em;
    white-space: nowrap;
}

.nav__logo strong {
    font-weight: 700;
}

.nav__logo-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: var(--radius-sm);
    background: var(--gradient-primary);
    color: white;
    flex-shrink: 0;
}

.nav__links {
    display: flex;
    align-items: center;
    gap: 8px;
}

.nav__link {
    padding: 8px 16px;
    border-radius: var(--radius-sm);
    font-size: 0.875rem;
    font-weight: 450;
    color: var(--text-muted);
    transition: all 0.2s var(--ease);
}

.nav__link:hover {
    color: var(--text);
    background: rgba(255,255,255,0.05);
}

.nav__cta {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    border-radius: 100px;
    background: var(--gradient-primary);
    color: white;
    font-size: 0.875rem;
    font-weight: 600;
    transition: all 0.3s var(--ease);
    white-space: nowrap;
}

.nav__cta:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 20px rgba(59, 130, 246, 0.4);
}

.nav__burger {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}

.nav__burger span {
    display: block;
    width: 22px;
    height: 2px;
    background: var(--text);
    border-radius: 2px;
    transition: all 0.3s var(--ease);
}

/* --- Hero Section --- */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    padding: 120px 24px 80px;
}

.hero__bg {
    position: absolute;
    inset: 0;
    overflow: hidden;
}

.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 80% 60% at 50% 40%, black 30%, transparent 100%);
    -webkit-mask-image: radial-gradient(ellipse 80% 60% at 50% 40%, black 30%, transparent 100%);
}

.hero__gradient {
    position: absolute;
    top: -30%;
    left: 50%;
    transform: translateX(-50%);
    width: 120%;
    height: 80%;
    background: radial-gradient(ellipse at center, rgba(59, 130, 246, 0.12) 0%, rgba(139, 92, 246, 0.06) 40%, transparent 70%);
    filter: blur(40px);
}

.hero__particles {
    position: absolute;
    inset: 0;
}

.hero__particle {
    position: absolute;
    width: 2px;
    height: 2px;
    background: rgba(59, 130, 246, 0.5);
    border-radius: 50%;
    animation: particle-float linear infinite;
}

@keyframes particle-float {
    0% { transform: translateY(100vh) scale(0); opacity: 0; }
    10% { opacity: 1; }
    90% { opacity: 1; }
    100% { transform: translateY(-10vh) scale(1); opacity: 0; }
}

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

.hero__badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 20px;
    border-radius: 100px;
    background: rgba(59, 130, 246, 0.1);
    border: 1px solid rgba(59, 130, 246, 0.2);
    font-size: 0.8125rem;
    font-weight: 500;
    color: #60a5fa;
    margin-bottom: 32px;
}

.hero__badge-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: #22c55e;
    animation: dot-pulse 2s ease-in-out infinite;
}

@keyframes dot-pulse {
    0%, 100% { opacity: 1; box-shadow: 0 0 0 0 rgba(34, 197, 94, 0.4); }
    50% { opacity: 0.7; box-shadow: 0 0 0 6px rgba(34, 197, 94, 0); }
}

.hero__title {
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    font-weight: 800;
    line-height: 1.1;
    letter-spacing: -0.03em;
    margin-bottom: 24px;
}

.hero__title-gradient {
    background: var(--gradient-text);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero__subtitle {
    font-size: clamp(1rem, 2vw, 1.2rem);
    color: var(--text-muted);
    max-width: 580px;
    margin: 0 auto 40px;
    line-height: 1.7;
}

.hero__actions {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 64px;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 12px 28px;
    border-radius: 100px;
    font-family: var(--font);
    font-size: 0.9375rem;
    font-weight: 600;
    cursor: pointer;
    border: none;
    transition: all 0.3s var(--ease);
    position: relative;
    overflow: hidden;
}

.btn--primary {
    background: var(--gradient-primary);
    color: white;
    box-shadow: 0 2px 12px rgba(59, 130, 246, 0.3);
}

.btn--primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 30px rgba(59, 130, 246, 0.4);
}

.btn--primary::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(255,255,255,0.2) 0%, transparent 50%);
    opacity: 0;
    transition: opacity 0.3s;
}

.btn--primary:hover::after {
    opacity: 1;
}

.btn--ghost {
    background: transparent;
    color: var(--text);
    border: 1px solid var(--border-light);
}

.btn--ghost:hover {
    background: rgba(255,255,255,0.05);
    border-color: var(--text-subtle);
    transform: translateY(-2px);
}

.btn--lg {
    padding: 16px 36px;
    font-size: 1rem;
}

/* Hero Stats */
.hero__stats {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 32px;
    flex-wrap: wrap;
}

.hero__stat {
    text-align: center;
}

.hero__stat-number {
    font-size: 2.25rem;
    font-weight: 800;
    letter-spacing: -0.03em;
    font-family: var(--font-mono);
    background: var(--gradient-text);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero__stat-plus {
    font-size: 1.5rem;
    font-weight: 700;
    background: var(--gradient-text);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero__stat-label {
    display: block;
    font-size: 0.8125rem;
    color: var(--text-subtle);
    margin-top: 4px;
}

.hero__stat-divider {
    width: 1px;
    height: 48px;
    background: var(--border);
}

/* Hero Scroll Indicator */
.hero__scroll {
    position: absolute;
    bottom: 32px;
    left: 50%;
    transform: translateX(-50%);
}

.hero__scroll-line {
    width: 1px;
    height: 60px;
    background: linear-gradient(to bottom, var(--blue), transparent);
    animation: scroll-line 2s ease-in-out infinite;
}

@keyframes scroll-line {
    0% { transform: scaleY(0); transform-origin: top; }
    50% { transform: scaleY(1); transform-origin: top; }
    50.1% { transform: scaleY(1); transform-origin: bottom; }
    100% { transform: scaleY(0); transform-origin: bottom; }
}

/* --- Section Shared --- */
.section {
    padding: 120px 0;
    position: relative;
}

.section__header {
    text-align: center;
    margin-bottom: 72px;
}

.section__tag {
    display: inline-block;
    padding: 6px 16px;
    border-radius: 100px;
    background: rgba(59, 130, 246, 0.1);
    border: 1px solid rgba(59, 130, 246, 0.15);
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: #60a5fa;
    margin-bottom: 20px;
}

.section__title {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 800;
    letter-spacing: -0.03em;
    line-height: 1.15;
    margin-bottom: 16px;
}

.section__desc {
    font-size: 1.1rem;
    color: var(--text-muted);
    max-width: 500px;
    margin: 0 auto;
}

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

.service-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 32px;
    transition: all 0.4s var(--ease);
    position: relative;
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: var(--gradient-primary);
    opacity: 0;
    transition: opacity 0.4s var(--ease);
}

.service-card:hover {
    background: var(--bg-card-hover);
    border-color: var(--border-light);
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

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

.service-card__icon {
    width: 56px;
    height: 56px;
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
    transition: transform 0.3s var(--ease-bounce);
}

.service-card:hover .service-card__icon {
    transform: scale(1.1) rotate(-5deg);
}

.service-card__icon--blue { background: var(--blue-glow); color: var(--blue); }
.service-card__icon--purple { background: var(--purple-glow); color: var(--purple); }
.service-card__icon--green { background: var(--green-glow); color: var(--green); }
.service-card__icon--orange { background: var(--orange-glow); color: var(--orange); }
.service-card__icon--cyan { background: var(--cyan-glow); color: var(--cyan); }
.service-card__icon--red { background: var(--red-glow); color: var(--red); }

.service-card__title {
    font-size: 1.125rem;
    font-weight: 700;
    margin-bottom: 10px;
    letter-spacing: -0.01em;
}

.service-card__desc {
    font-size: 0.875rem;
    color: var(--text-muted);
    line-height: 1.6;
    margin-bottom: 20px;
}

.service-card__list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.service-card__list li {
    font-size: 0.8125rem;
    color: var(--text-subtle);
    padding-left: 20px;
    position: relative;
}

.service-card__list li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 7px;
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--border-light);
    transition: background 0.3s;
}

.service-card:hover .service-card__list li::before {
    background: var(--blue);
}

/* --- Why Section --- */
.why__grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}

.why-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 40px;
    transition: all 0.4s var(--ease);
    position: relative;
}

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

.why-card__number {
    font-family: var(--font-mono);
    font-size: 3rem;
    font-weight: 800;
    background: var(--gradient-text);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    opacity: 0.3;
    margin-bottom: 16px;
    line-height: 1;
}

.why-card__title {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 10px;
    letter-spacing: -0.01em;
}

.why-card__desc {
    font-size: 0.9375rem;
    color: var(--text-muted);
    line-height: 1.7;
}

/* --- Process Timeline --- */
.process__timeline {
    max-width: 640px;
    margin: 0 auto;
    position: relative;
}

.process__timeline::before {
    content: '';
    position: absolute;
    left: 24px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(to bottom, var(--blue), var(--purple), transparent);
}

.process__step {
    display: flex;
    gap: 32px;
    padding: 32px 0;
    position: relative;
}

.process__step-number {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: var(--bg-card);
    border: 2px solid var(--blue);
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-mono);
    font-weight: 700;
    font-size: 1.125rem;
    color: var(--blue);
    flex-shrink: 0;
    z-index: 1;
    transition: all 0.3s var(--ease);
}

.process__step:hover .process__step-number {
    background: var(--blue);
    color: white;
    box-shadow: 0 0 24px rgba(59, 130, 246, 0.4);
}

.process__step-content h3 {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 8px;
    letter-spacing: -0.01em;
}

.process__step-content p {
    font-size: 0.9375rem;
    color: var(--text-muted);
    line-height: 1.7;
}

/* --- CTA Banner --- */
.cta-banner {
    padding: 40px 0;
}

.cta-banner__inner {
    position: relative;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    padding: 72px 48px;
    text-align: center;
    overflow: hidden;
}

.cta-banner__glow {
    position: absolute;
    top: -50%;
    left: 50%;
    transform: translateX(-50%);
    width: 600px;
    height: 400px;
    background: radial-gradient(ellipse, rgba(59, 130, 246, 0.15) 0%, transparent 70%);
    filter: blur(40px);
    pointer-events: none;
}

.cta-banner__title {
    font-size: clamp(1.75rem, 3.5vw, 2.5rem);
    font-weight: 800;
    letter-spacing: -0.03em;
    margin-bottom: 12px;
    position: relative;
}

.cta-banner__desc {
    font-size: 1.1rem;
    color: var(--text-muted);
    margin-bottom: 36px;
    position: relative;
}

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

/* --- Contact Section --- */
.contact__grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 32px;
    align-items: start;
}

.contact__info {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.contact__card {
    display: flex;
    align-items: center;
    gap: 20px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 24px;
    transition: all 0.3s var(--ease);
}

.contact__card:hover {
    background: var(--bg-card-hover);
    border-color: var(--border-light);
    transform: translateX(4px);
}

.contact__card-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-sm);
    background: var(--blue-glow);
    color: var(--blue);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.contact__card-label {
    display: block;
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--text-subtle);
    text-transform: uppercase;
    letter-spacing: 0.06em;
    margin-bottom: 4px;
}

.contact__card-value {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text);
    transition: color 0.2s;
}

a.contact__card-value:hover {
    color: var(--blue);
}

.contact__billing {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 36px;
}

.contact__billing-title {
    font-size: 1.125rem;
    font-weight: 700;
    margin-bottom: 24px;
    letter-spacing: -0.01em;
}

.contact__billing-grid {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.contact__billing-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--border);
}

.contact__billing-item:last-child {
    padding-bottom: 0;
    border-bottom: none;
}

.contact__billing-label {
    font-size: 0.875rem;
    color: var(--text-subtle);
}

.contact__billing-value {
    font-family: var(--font-mono);
    font-size: 0.9375rem;
    font-weight: 500;
    color: var(--text);
}

.contact__billing-value small {
    color: var(--text-subtle);
    font-weight: 400;
}

/* --- Footer --- */
.footer {
    border-top: 1px solid var(--border);
    padding: 32px 0;
}

.footer__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.footer__brand {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 600;
    font-size: 0.9375rem;
}

.footer__copy {
    font-size: 0.8125rem;
    color: var(--text-subtle);
}

/* --- Animations --- */
.animate-in {
    opacity: 0;
    transform: translateY(24px);
    animation: fade-in-up 0.8s var(--ease) forwards;
}

.animate-in:nth-child(1) { animation-delay: 0.1s; }
.animate-in:nth-child(2) { animation-delay: 0.2s; }
.animate-in:nth-child(3) { animation-delay: 0.35s; }
.animate-in:nth-child(4) { animation-delay: 0.5s; }
.animate-in:nth-child(5) { animation-delay: 0.65s; }

@keyframes fade-in-up {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Scroll reveal */
[data-aos] {
    opacity: 0;
    transform: translateY(32px);
    transition: all 0.7s var(--ease);
}

[data-aos].is-visible {
    opacity: 1;
    transform: translateY(0);
}

/* --- Responsive --- */
@media (max-width: 1024px) {
    .services__grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .nav__links {
        display: none;
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background: rgba(9, 9, 11, 0.97);
        backdrop-filter: blur(20px);
        flex-direction: column;
        align-items: center;
        justify-content: center;
        gap: 16px;
        z-index: 99;
    }

    .nav__links.is-open {
        display: flex;
    }

    .nav__links .nav__link {
        font-size: 1.25rem;
        padding: 12px 24px;
    }

    .nav__burger {
        display: flex;
        z-index: 100;
    }

    .nav__burger.is-open span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }
    .nav__burger.is-open span:nth-child(2) {
        opacity: 0;
    }
    .nav__burger.is-open span:nth-child(3) {
        transform: rotate(-45deg) translate(5px, -5px);
    }

    .nav__cta {
        display: none;
    }

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

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

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

    .hero__stats {
        gap: 24px;
    }

    .hero__stat-divider {
        display: none;
    }

    .hero {
        padding: 100px 20px 60px;
    }

    .section {
        padding: 80px 0;
    }

    .process__timeline::before {
        display: none;
    }

    .process__step {
        flex-direction: column;
        gap: 16px;
        align-items: center;
        text-align: center;
    }

    .cta-banner__inner {
        padding: 48px 24px;
    }

    .footer__inner {
        flex-direction: column;
        gap: 12px;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .hero__actions {
        flex-direction: column;
        align-items: stretch;
    }

    .hero__actions .btn {
        justify-content: center;
    }

    .cta-banner__actions {
        flex-direction: column;
        align-items: stretch;
    }

    .cta-banner__actions .btn {
        justify-content: center;
    }
}

/* --- Selection --- */
::selection {
    background: rgba(59, 130, 246, 0.3);
    color: white;
}

/* --- Scrollbar --- */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg);
}

::-webkit-scrollbar-thumb {
    background: var(--border-light);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--text-subtle);
}