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

:root {
    --color-bg: #0a0a0a;
    --color-bg-elevated: #111111;
    --color-bg-subtle: #161616;
    --color-surface: #1a1a1a;
    --color-border: #222222;
    --color-border-hover: #333333;
    --color-text: #e5e5e5;
    --color-text-secondary: #888888;
    --color-text-muted: #555555;
    --color-accent: #3b82f6;
    --color-accent-hover: #60a5fa;
    --color-accent-subtle: rgba(59, 130, 246, 0.1);
    --color-green: #22c55e;
    --color-yellow: #eab308;
    --color-red: #ef4444;
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
    --radius-sm: 100px;
    --radius-md: 10px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --transition: 0.2s ease;
}

html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
}

body {
    font-family: var(--font-sans);
    background: var(--color-bg);
    color: var(--color-text);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

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

/* ===== Container ===== */
.container {
    max-width: 1120px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ===== Buttons ===== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    font-family: var(--font-sans);
    font-weight: 500;
    border: 1px solid transparent;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all var(--transition);
    white-space: nowrap;
    text-decoration: none;
}

.btn--sm {
    font-size: 0.875rem;
    padding: 8px 16px;
}

.btn--lg {
    font-size: 1rem;
    padding: 14px 28px;
}

.btn--primary {
    background: var(--color-accent);
    color: #fff;
    border-color: var(--color-accent);
}
.btn--primary:hover {
    background: var(--color-accent-hover);
    border-color: var(--color-accent-hover);
    transform: translateY(-1px);
    box-shadow: 0 4px 20px rgba(59, 130, 246, 0.3);
}

.btn--ghost {
    background: transparent;
    color: var(--color-text-secondary);
    border-color: var(--color-border);
}
.btn--ghost:hover {
    color: var(--color-text);
    border-color: var(--color-border-hover);
    background: var(--color-surface);
}

.btn--full {
    width: 100%;
}

/* ===== Nav ===== */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    background: rgba(10, 10, 10, 0.8);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid transparent;
    transition: border-color var(--transition);
}

.nav--scrolled {
    border-bottom-color: var(--color-border);
}

.nav__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 64px;
}

.nav__logo {
    display: flex;
    align-items: center;
    gap: 10px;
}

.nav__logo-mark {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-family: 'Montserrat', var(--font-sans);
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--color-accent);
    background: transparent;
    border: 2px solid var(--color-accent);
    padding: 0px 7px;
    border-radius: 7px;
    letter-spacing: -0.04em;
}

.nav__logo-name {
    font-family: 'Montserrat', var(--font-sans);
    font-size: 1.05rem;
    font-weight: 900;
    color: var(--color-text);
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

.nav__links {
    display: flex;
    align-items: center;
    gap: 32px;
}

.nav__links a {
    font-size: 0.875rem;
    color: var(--color-text-secondary);
    transition: color var(--transition);
}
.nav__links a:hover {
    color: var(--color-text);
}

.nav__toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
}
.nav__toggle span {
    display: block;
    width: 22px;
    height: 2px;
    background: var(--color-text);
    border-radius: 2px;
    transition: all var(--transition);
}

/* ===== Language Switcher ===== */
.lang-switcher {
    display: flex;
    align-items: center;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: 100px;
    padding: 2px;
    gap: 2px;
}

.lang-switcher__current,
.lang-switcher__option {
    font-size: 0.75rem;
    font-weight: 600;
    padding: 5px 12px;
    border-radius: 100px;
    transition: all var(--transition);
    cursor: pointer;
    line-height: 1;
}

.lang-switcher__current {
    background: var(--color-accent);
    color: #fff;
}

.lang-switcher__option {
    color: var(--color-text-secondary);
}
.lang-switcher__option:hover {
    color: var(--color-text);
    background: var(--color-bg-elevated);
}

/* ===== Hero ===== */
.hero {
    padding: 160px 0 80px;
    text-align: center;
}

.hero__inner {
    max-width: 720px;
    margin: 0 auto;
}

.hero__badge {
    display: inline-block;
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--color-accent);
    background: var(--color-accent-subtle);
    border: 1px solid rgba(59, 130, 246, 0.2);
    padding: 6px 14px;
    border-radius: 100px;
    margin-bottom: 24px;
    letter-spacing: 0.02em;
}

.hero__title {
    font-size: clamp(2.2rem, 5vw, 3.5rem);
    font-weight: 700;
    line-height: 1.15;
    letter-spacing: -0.03em;
    margin-bottom: 20px;
}

.hero__title--accent {
    background: linear-gradient(135deg, var(--color-accent) 0%, #a78bfa 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero__subtitle {
    font-size: 1.125rem;
    color: var(--color-text-secondary);
    line-height: 1.7;
    max-width: 560px;
    margin: 0 auto 36px;
}

.hero__actions {
    display: flex;
    gap: 12px;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 56px;
}

/* Terminal */
.hero__terminal {
    max-width: 520px;
    margin: 0 auto;
}

.terminal {
    background: var(--color-bg-elevated);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    overflow: hidden;
    text-align: left;
}

.terminal__header {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 12px 16px;
    border-bottom: 1px solid var(--color-border);
}

.terminal__dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
}
.terminal__dot--red { background: var(--color-red); }
.terminal__dot--yellow { background: var(--color-yellow); }
.terminal__dot--green { background: var(--color-green); }

.terminal__title {
    font-size: 0.75rem;
    color: var(--color-text-muted);
    font-family: var(--font-mono);
    margin-left: auto;
}

.terminal__body {
    padding: 16px 20px;
    min-height: 52px;
}

.terminal__line {
    display: flex;
    align-items: center;
    gap: 8px;
    font-family: var(--font-mono);
    font-size: 0.9rem;
}

.terminal__prompt {
    color: var(--color-green);
    font-weight: 500;
}

.terminal__text {
    color: var(--color-text);
}

.terminal__cursor {
    color: var(--color-accent);
    animation: blink 1s step-end infinite;
}

@keyframes blink {
    50% { opacity: 0; }
}

/* ===== Sections ===== */
.section {
    padding: 100px 0;
}

.section--dark {
    background: var(--color-bg-elevated);
}

.section--cta {
    padding: 80px 0 100px;
}

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

.section__tag {
    display: inline-block;
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-accent);
    margin-bottom: 12px;
}

.section__title {
    font-size: clamp(1.8rem, 3.5vw, 2.5rem);
    font-weight: 700;
    letter-spacing: -0.02em;
    margin-bottom: 16px;
}

.section__subtitle {
    font-size: 1.05rem;
    color: var(--color-text-secondary);
    max-width: 520px;
    margin: 0 auto;
    line-height: 1.7;
}

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

.service-card {
    background: var(--color-bg-elevated);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 32px 28px;
    transition: all var(--transition);
}
.service-card:hover {
    border-color: var(--color-border-hover);
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.3);
}

.service-card__icon {
    width: 40px;
    height: 40px;
    color: var(--color-accent);
    margin-bottom: 20px;
}
.service-card__icon svg {
    width: 100%;
    height: 100%;
}

.service-card__title {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 10px;
    letter-spacing: -0.01em;
}

.service-card__desc {
    font-size: 0.9rem;
    color: var(--color-text-secondary);
    line-height: 1.65;
}

/* ===== Process Grid ===== */
.process-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.process-step {
    position: relative;
    padding: 28px 24px;
    border-radius: var(--radius-md);
    background: var(--color-bg);
    border: 1px solid var(--color-border);
}

.process-step__number {
    font-family: var(--font-mono);
    font-size: 2rem;
    font-weight: 700;
    color: var(--color-accent);
    opacity: 0.4;
    margin-bottom: 16px;
}

.process-step__title {
    font-size: 1.05rem;
    font-weight: 600;
    margin-bottom: 10px;
}

.process-step__desc {
    font-size: 0.875rem;
    color: var(--color-text-secondary);
    line-height: 1.65;
}

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

.portfolio-card {
    display: flex;
    flex-direction: column;
    background: var(--color-bg-elevated);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 28px 24px;
    transition: all var(--transition);
    text-decoration: none;
    color: inherit;
}
.portfolio-card:hover {
    border-color: var(--color-accent);
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.3);
}

.portfolio-card__logo {
    height: 36px;
    width: auto;
    max-width: 240px;
    flex-shrink: 0;
    object-fit: contain;
}

.portfolio-card__logo--light {
    background: #fff;
    padding: 8px 8px;
    border-radius: 8px;
    height: 45px;
}

.portfolio-card__logo:not(.portfolio-card__logo--light) {
    height: 29px;
}

.portfolio-card__header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 12px;
    min-height: 45px;
}

.portfolio-card__url {
    font-size: 0.8rem;
    color: var(--color-accent);
    font-family: var(--font-mono);
    margin-top: 12px;
}

.portfolio-card__header {
    justify-content: space-between;
}

.portfolio-card__logo {
    height: 36px;
}

.portfolio-card__title {
    font-size: 1.2rem;
    font-weight: 700;
    letter-spacing: -0.01em;
}

.portfolio-card__arrow {
    width: 20px;
    height: 20px;
    color: var(--color-text-muted);
    transition: all var(--transition);
    flex-shrink: 0;
    margin-left: auto;
}
.portfolio-card:hover .portfolio-card__arrow {
    color: var(--color-accent);
    transform: translate(2px, -2px);
}

.portfolio-card__desc {
    font-size: 0.9rem;
    color: var(--color-text-secondary);
    line-height: 1.65;
    margin-bottom: 16px;
    flex: 1;
}

.portfolio-card__tags {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}

.portfolio-card__tags span {
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--color-accent);
    background: var(--color-accent-subtle);
    border: 1px solid rgba(59, 130, 246, 0.15);
    padding: 4px 10px;
    border-radius: 100px;
}

/* ===== Tech Grid ===== */
.tech-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 32px;
}

.tech-group__title {
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--color-text-muted);
    margin-bottom: 14px;
}

.tech-group__items {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.tech-tag {
    display: inline-block;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--color-text-secondary);
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    padding: 8px 16px;
    border-radius: var(--radius-sm);
    transition: all var(--transition);
}
.tech-tag:hover {
    color: var(--color-text);
    border-color: var(--color-border-hover);
    background: var(--color-bg-elevated);
}

/* ===== CTA / Contact Form ===== */
.cta {
    max-width: 580px;
    margin: 0 auto;
    text-align: center;
}

.cta__title {
    font-size: clamp(1.8rem, 3.5vw, 2.5rem);
    font-weight: 700;
    letter-spacing: -0.02em;
    margin-bottom: 12px;
}

.cta__subtitle {
    font-size: 1.05rem;
    color: var(--color-text-secondary);
    margin-bottom: 40px;
}

.cta__form {
    text-align: left;
    margin-bottom: 24px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.form-group {
    margin-bottom: 16px;
}

.form-group label {
    display: block;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--color-text-secondary);
    margin-bottom: 6px;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 12px 14px;
    font-family: var(--font-sans);
    font-size: 0.95rem;
    color: var(--color-text);
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    transition: border-color var(--transition);
    outline: none;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--color-text-muted);
}

.form-group input:focus,
.form-group textarea:focus {
    border-color: var(--color-accent);
    box-shadow: 0 0 0 3px var(--color-accent-subtle);
}

.form-group textarea {
    resize: vertical;
    min-height: 100px;
    border-radius: 16px;
}

.cta__alt {
    font-size: 0.875rem;
    color: var(--color-text-muted);
}
.cta__alt a {
    color: var(--color-accent);
    transition: color var(--transition);
}
.cta__alt a:hover {
    color: var(--color-accent-hover);
}

/* ===== Footer ===== */
.footer {
    border-top: 1px solid var(--color-border);
    padding: 48px 0 32px;
}

.footer__inner {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 24px;
}

.footer__brand {
    display: flex;
    align-items: stretch;
    gap: 12px;
}

.footer__brand .nav__logo-mark {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 2px 10px;
    margin: 3px 0 5px 0;
}

.footer__name {
    font-family: var(--font-sans);
    font-weight: 600;
    font-size: 0.95rem;
}

.footer__tagline {
    font-size: 0.8rem;
    color: var(--color-text-muted);
}

.footer__links {
    display: flex;
    gap: 28px;
}

.footer__links a {
    font-size: 0.85rem;
    color: var(--color-text-secondary);
    transition: color var(--transition);
}
.footer__links a:hover {
    color: var(--color-text);
}

.footer__bottom {
    padding-top: 24px;
    border-top: 1px solid var(--color-border);
    width: 100%;
    text-align: center;
}

.footer__bottom p {
    font-size: 0.8rem;
    color: var(--color-text-muted);
}

/* ===== Animations ===== */
.fade-in {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in--visible {
    opacity: 1;
    transform: translateY(0);
}

/* ===== Responsive ===== */
@media (max-width: 900px) {
    .services-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .process-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .portfolio-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 640px) {
    .hero {
        padding: 120px 0 60px;
    }

    .hero__subtitle {
        font-size: 1rem;
    }

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

    .section {
        padding: 72px 0;
    }

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

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

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

    .form-row {
        grid-template-columns: 1fr;
    }

    .nav__links {
        display: none;
        position: fixed;
        top: 64px;
        left: 0;
        right: 0;
        background: rgba(10, 10, 10, 0.95);
        backdrop-filter: blur(20px);
        -webkit-backdrop-filter: blur(20px);
        flex-direction: column;
        padding: 24px;
        gap: 20px;
        border-bottom: 1px solid var(--color-border);
    }

    .nav__links--open {
        display: flex;
    }

    .nav__links a {
        font-size: 1rem;
    }

    .nav__toggle {
        display: flex;
    }

    .footer__links {
        flex-wrap: wrap;
        justify-content: center;
        gap: 16px 24px;
    }
}