/* ========================================
   CUSTOM PROPERTIES
   ======================================== */

:root {
    --color-bg-primary: #0B1426;
    --color-bg-secondary: #111D35;
    --color-bg-tertiary: #162040;
    --color-accent: #00BCD4;
    --color-accent-hover: #4DD0E1;
    --color-accent-subtle: #B2EBF2;
    --color-text-primary: #F0F4F8;
    --color-text-secondary: #94A3B8;
    --color-border: #1E3050;

    --font-body: 'Manrope', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-display: 'Fraunces', Georgia, serif;

    --section-padding: 5rem 0;
    --container-max-width: 1140px;
    --container-padding: 0 1.5rem;

    --transition-fast: 0.2s ease;
    --transition-medium: 0.4s ease;

    --navbar-height: 4.5rem;

    --radius-sm: 0.375rem;
    --radius-md: 0.75rem;
    --radius-lg: 1rem;
    --radius-xl: 1.5rem;
}

/* ========================================
   RESET & BASE
   ======================================== */

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

html {
    scroll-padding-top: var(--navbar-height);
}

@media (prefers-reduced-motion: no-preference) {
    html { scroll-behavior: smooth; }
}

body {
    font-family: var(--font-body);
    font-size: 1rem;
    line-height: 1.65;
    color: var(--color-text-primary);
    background-color: var(--color-bg-primary);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

::selection {
    background-color: rgba(0, 188, 212, 0.3);
    color: var(--color-text-primary);
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }

/* ========================================
   UTILITIES
   ======================================== */

.container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: var(--container-padding);
}

.section-title {
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    font-weight: 700;
    text-align: center;
    margin-bottom: 0.75rem;
    position: relative;
}

.section-subtitle {
    text-align: center;
    color: var(--color-text-secondary);
    max-width: 600px;
    margin: 0 auto 3rem;
    font-size: 1.05rem;
}

/* Badge pill */
.badge {
    display: inline-block;
    padding: 0.35rem 1rem;
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--color-accent);
    border: 1px solid rgba(0, 188, 212, 0.3);
    border-radius: 50px;
    background: rgba(0, 188, 212, 0.08);
}

/* Tag */
.tag {
    display: inline-block;
    padding: 0.4rem 0.9rem;
    font-size: 0.82rem;
    font-weight: 500;
    color: var(--color-text-secondary);
    background: var(--color-bg-tertiary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
}

/* Pill highlight */
.pill {
    display: inline-block;
    padding: 0.3rem 0.85rem;
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--color-accent);
    background: rgba(0, 188, 212, 0.1);
    border-radius: 50px;
}

/* ========================================
   BUTTONS
   ======================================== */

.btn {
    display: inline-block;
    padding: 0.75rem 1.75rem;
    border-radius: var(--radius-sm);
    font-weight: 600;
    font-size: 0.95rem;
    text-decoration: none;
    cursor: pointer;
    transition: all var(--transition-fast);
    border: 2px solid transparent;
    font-family: inherit;
    letter-spacing: 0.01em;
}

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

.btn--primary:hover {
    background: var(--color-accent-hover);
    border-color: var(--color-accent-hover);
    transform: translateY(-2px);
    box-shadow: 0 4px 20px rgba(0, 188, 212, 0.3);
}

.btn--outline {
    background: transparent;
    color: var(--color-text-primary);
    border-color: var(--color-border);
}

.btn--outline:hover {
    border-color: var(--color-accent);
    color: var(--color-accent);
    transform: translateY(-2px);
}

.btn:active { transform: translateY(0); }

/* ========================================
   NAVBAR
   ======================================== */

.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: var(--navbar-height);
    z-index: 1000;
    background: rgba(22, 32, 64, 0.85);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--color-border);
    transition: background var(--transition-fast), box-shadow var(--transition-fast);
}

.navbar--scrolled {
    background: rgba(11, 20, 38, 0.95);
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.3);
}

.navbar__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
}

.navbar__logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.navbar__logo-img {
    height: 44px;
    width: auto;
}

.navbar__toggle {
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 28px;
    height: 28px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0;
    z-index: 10;
}

.navbar__toggle span {
    display: block;
    width: 100%;
    height: 2px;
    background: var(--color-text-primary);
    border-radius: 2px;
    transition: all 0.3s ease;
    transform-origin: center;
}

.navbar__toggle--open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.navbar__toggle--open span:nth-child(2) { opacity: 0; }
.navbar__toggle--open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.navbar__links {
    display: none;
    position: absolute;
    top: var(--navbar-height);
    left: 0;
    width: 100%;
    background: rgba(22, 32, 64, 0.97);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--color-border);
    padding: 1rem 0;
}

.navbar__links--open { display: block; }
.navbar__links li { text-align: center; }

.navbar__links a {
    display: block;
    padding: 0.65rem 1.25rem;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--color-text-secondary);
    transition: color var(--transition-fast);
}

.navbar__links a:hover,
.navbar__links a.active { color: var(--color-accent); }

.navbar__cta {
    color: var(--color-accent) !important;
    font-weight: 600 !important;
}

/* ========================================
   HERO
   ======================================== */

.hero {
    padding: calc(var(--navbar-height) + 3rem) 0 4rem;
    position: relative;
    overflow: hidden;
    background: linear-gradient(160deg, var(--color-bg-primary) 0%, #0D2137 50%, var(--color-bg-secondary) 100%);
}

.hero__glow {
    position: absolute;
    border-radius: 50%;
    pointer-events: none;
}

.hero__glow--1 {
    width: 900px;
    height: 900px;
    top: -300px;
    right: -300px;
    background: radial-gradient(circle, rgba(0, 188, 212, 0.07) 0%, transparent 65%);
}

.hero__glow--2 {
    width: 600px;
    height: 600px;
    bottom: -200px;
    left: -200px;
    background: radial-gradient(circle, rgba(0, 188, 212, 0.05) 0%, transparent 65%);
}

.hero__dotgrid {
    position: absolute;
    inset: 0;
    background-image: radial-gradient(circle, rgba(0, 188, 212, 0.06) 1px, transparent 1px);
    background-size: 36px 36px;
    pointer-events: none;
}

.hero__inner {
    display: grid;
    gap: 2rem;
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero__text { max-width: 640px; }

.hero__title {
    font-family: var(--font-display);
    font-size: clamp(2rem, 5vw, 3.25rem);
    font-weight: 700;
    line-height: 1.15;
    margin: 1rem 0 1.25rem;
    background: linear-gradient(135deg, var(--color-text-primary) 0%, var(--color-accent-subtle) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero__subtitle {
    color: var(--color-text-secondary);
    font-size: 1.05rem;
    line-height: 1.7;
    margin-bottom: 1.25rem;
}

.hero__pills {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
}

.hero__ctas {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
}

.hero__visual {
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero__img {
    width: 100%;
    max-width: 480px;
    height: auto;
    border-radius: var(--radius-lg);
    object-fit: cover;
    aspect-ratio: 4 / 3;
    box-shadow: 0 16px 48px rgba(0, 0, 0, 0.4), 0 0 0 1px var(--color-border);
}

/* ========================================
   ABOUT
   ======================================== */

.about {
    padding: var(--section-padding);
    background: var(--color-bg-secondary);
    position: relative;
    overflow: hidden;
}

.about__glow {
    position: absolute;
    width: 760px;
    height: 760px;
    top: -200px;
    left: -200px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(0, 188, 212, 0.05) 0%, transparent 65%);
    pointer-events: none;
}

.about__grid {
    display: grid;
    gap: 2.5rem;
    margin-bottom: 3rem;
}

/* Mobile: text first, image second */
.about__visual {
    order: 2;
}

.about__text {
    order: 1;
}

.about__heading {
    font-family: var(--font-display);
    font-size: clamp(1.4rem, 3.5vw, 2rem);
    font-weight: 600;
    line-height: 1.3;
    margin-bottom: 1rem;
}

.about__desc {
    color: var(--color-text-secondary);
    margin-bottom: 1.25rem;
    line-height: 1.7;
}

.about__tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
}

.about__ctas {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
}

.about__visual {
    display: flex;
    justify-content: center;
    align-items: center;
}

.about__img {
    width: 100%;
    max-width: 460px;
    height: auto;
    border-radius: var(--radius-lg);
    object-fit: cover;
    aspect-ratio: 4 / 3;
    box-shadow: 0 16px 48px rgba(0, 0, 0, 0.4), 0 0 0 1px var(--color-border);
}

/* Stats */
.about__stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 1rem;
}

.stat-card {
    background: var(--color-bg-tertiary);
    border: 1px solid var(--color-border);
    border-left: 3px solid var(--color-accent);
    border-radius: var(--radius-md);
    padding: 1.25rem 1.5rem;
    text-align: center;
}

.stat-card__number {
    display: block;
    font-size: 2rem;
    font-weight: 800;
    color: var(--color-accent);
    line-height: 1.2;
}

.stat-card__label {
    font-size: 0.85rem;
    color: var(--color-text-secondary);
    font-weight: 500;
}

/* ========================================
   SERVICES
   ======================================== */

.services {
    padding: var(--section-padding);
    background: var(--color-bg-primary);
}

.services__grid {
    display: grid;
    gap: 1.25rem;
    margin-bottom: 2.5rem;
}

.services__card {
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-left: 3px solid transparent;
    border-radius: var(--radius-lg);
    padding: 1.75rem;
    transition: border-color var(--transition-medium), transform var(--transition-medium), box-shadow var(--transition-medium);
}

.services__card:hover {
    border-left-color: var(--color-accent);
    transform: translateY(-3px);
    box-shadow: 0 8px 32px rgba(0, 188, 212, 0.08);
}

.services__icon {
    color: var(--color-accent);
    margin-bottom: 1rem;
}

.services__card h3 {
    font-size: 1.15rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.services__card > p {
    font-size: 0.92rem;
    color: var(--color-text-secondary);
    line-height: 1.6;
    margin-bottom: 1rem;
}

.services__features {
    list-style: none;
    padding: 0;
}

.services__features li {
    position: relative;
    padding-left: 1.25rem;
    font-size: 0.88rem;
    color: var(--color-text-secondary);
    line-height: 1.7;
}

.services__features li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0.55em;
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--color-accent);
    opacity: 0.6;
}

.services__ctas {
    display: flex;
    justify-content: center;
    gap: 0.75rem;
    flex-wrap: wrap;
}

/* ========================================
   PROCESS
   ======================================== */

.process {
    padding: var(--section-padding);
    background: var(--color-bg-secondary);
    position: relative;
    overflow: hidden;
}

.process__glow {
    position: absolute;
    width: 560px;
    height: 560px;
    bottom: -150px;
    right: -150px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(0, 188, 212, 0.05) 0%, transparent 65%);
    pointer-events: none;
}

.process__steps {
    display: grid;
    gap: 1.5rem;
    position: relative;
}

.process__step {
    background: var(--color-bg-tertiary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 2rem;
    transition: border-color var(--transition-medium);
}

.process__step:hover {
    border-color: rgba(0, 188, 212, 0.3);
}

.process__step-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 0.75rem;
}

.process__step-number {
    font-size: 2rem;
    font-weight: 800;
    color: var(--color-accent);
    opacity: 0.5;
    line-height: 1;
    font-family: var(--font-body);
}

.process__step-header h3 {
    font-size: 1.2rem;
    font-weight: 700;
}

.process__step-desc {
    color: var(--color-text-secondary);
    font-size: 0.95rem;
    margin-bottom: 1rem;
    line-height: 1.6;
}

.process__step-features {
    display: grid;
    gap: 0.35rem;
}

.process__step-features li {
    position: relative;
    padding-left: 1.25rem;
    font-size: 0.88rem;
    color: var(--color-text-secondary);
    line-height: 1.65;
}

.process__step-features li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0.55em;
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--color-accent);
    opacity: 0.5;
}

/* ========================================
   PROOF
   ======================================== */

.proof {
    padding: 5rem 0;
    background: var(--color-bg-primary);
    position: relative;
    overflow: hidden;
    text-align: center;
}

.proof__glow {
    position: absolute;
    width: 800px;
    height: 800px;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    border-radius: 50%;
    background: radial-gradient(circle, rgba(0, 188, 212, 0.06) 0%, transparent 60%);
    pointer-events: none;
}

.proof__content {
    position: relative;
    z-index: 1;
}

.proof__stat {
    font-family: var(--font-display);
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: 700;
    margin: 1.25rem 0 0.75rem;
    background: linear-gradient(135deg, var(--color-text-primary) 0%, var(--color-accent) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.proof__tagline {
    color: var(--color-text-secondary);
    font-size: 1.15rem;
    margin-bottom: 2rem;
}

/* ========================================
   CONTACT
   ======================================== */

.contact {
    padding: var(--section-padding);
    background: var(--color-bg-secondary);
}

.contact__grid {
    display: grid;
    gap: 2.5rem;
}

.form-group { margin-bottom: 1.25rem; }

.form-group label {
    display: block;
    font-size: 0.78rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--color-text-secondary);
    margin-bottom: 0.4rem;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 0.7rem 1rem;
    background: var(--color-bg-primary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    color: var(--color-text-primary);
    font-family: var(--font-body);
    font-size: 0.95rem;
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-group input::placeholder,
.form-group textarea::placeholder { color: rgba(148, 163, 184, 0.4); }

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-accent);
    box-shadow: 0 0 0 3px rgba(0, 188, 212, 0.12);
}

.form-group textarea {
    resize: vertical;
    min-height: 110px;
}

.contact__form .btn { width: 100%; }

.contact__info {
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.contact__desc {
    color: var(--color-text-secondary);
    margin-bottom: 1.5rem;
    line-height: 1.7;
}

.contact__email {
    display: inline-block;
    color: var(--color-accent);
    font-weight: 600;
    margin-bottom: 1.5rem;
    font-size: 1.05rem;
    transition: color var(--transition-fast);
}

.contact__email:hover { color: var(--color-accent-hover); }

.contact__social {
    display: flex;
    gap: 0.6rem;
}

.contact__social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: var(--color-bg-tertiary);
    border: 1px solid var(--color-border);
    color: var(--color-text-secondary);
    transition: all var(--transition-fast);
}

.contact__social-link:hover {
    background: var(--color-accent);
    border-color: var(--color-accent);
    color: var(--color-bg-primary);
    transform: translateY(-2px);
}

/* ========================================
   FOOTER
   ======================================== */

.footer {
    background: var(--color-bg-primary);
    border-top: 1px solid var(--color-border);
    padding: 1.5rem 0;
}

.footer__inner {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    align-items: center;
    gap: 0.5rem;
}

.footer p {
    font-size: 0.82rem;
    color: var(--color-text-secondary);
}

.footer__email {
    font-size: 0.82rem;
    color: var(--color-text-secondary);
    transition: color var(--transition-fast);
}

.footer__email:hover { color: var(--color-accent); }

/* ========================================
   ANIMATIONS
   ======================================== */

.animate-fade-up {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.6s ease, transform 0.6s ease;
    transition-delay: var(--animation-delay, 0s);
}

.animate-fade-up.is-visible {
    opacity: 1;
    transform: translateY(0);
}

/* ========================================
   RESPONSIVE - TABLET (768px+)
   ======================================== */

@media (min-width: 768px) {
    :root { --section-padding: 5.5rem 0; }

    /* Navbar */
    .navbar__toggle { display: none; }

    .navbar__links {
        display: flex;
        position: static;
        width: auto;
        background: none;
        backdrop-filter: none;
        -webkit-backdrop-filter: none;
        border-bottom: none;
        padding: 0;
        gap: 0.15rem;
    }

    .navbar__links a { padding: 0.5rem 0.9rem; }

    /* Hero */
    .hero__inner {
        grid-template-columns: 1.2fr 0.8fr;
    }

    /* About — image left, text right */
    .about__grid {
        grid-template-columns: 1fr 1.2fr;
        align-items: center;
    }

    .about__visual { order: 0; }
    .about__text { order: 0; }

    /* Services */
    .services__grid {
        grid-template-columns: repeat(2, 1fr);
    }

    /* Contact */
    .contact__grid {
        grid-template-columns: 1.2fr 0.8fr;
        align-items: start;
    }

    .contact__form .btn { width: auto; }
}

/* ========================================
   RESPONSIVE - DESKTOP (1024px+)
   ======================================== */

@media (min-width: 1024px) {
    :root { --section-padding: 6rem 0; }

    .hero { padding: calc(var(--navbar-height) + 4rem) 0 5rem; }
}

/* ========================================
   ACCESSIBILITY - REDUCED MOTION
   ======================================== */

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
    .animate-fade-up {
        opacity: 1 !important;
        transform: none !important;
    }
}