/* =========================================
   GALAKSI — PREMIUM HOME DESIGN
   Dark Navy + Electric Blue
========================================= */

:root {
    --bg: #070d1a;
    --bg-soft: #0b1425;
    --surface: #101c32;
    --surface-hover: #152541;

    --primary: #438cff;
    --primary-light: #72adff;
    --primary-glow: rgba(67, 140, 255, .18);

    --text: #f3f7ff;
    --muted: #98a9c4;
    --border: rgba(148, 177, 220, .12);

    --radius: 18px;
    --transition: .25s ease;
}

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: 100px;
}

body {
    background:
        radial-gradient(
            circle at 80% 5%,
            rgba(45, 105, 210, .09),
            transparent 32%
        ),
        var(--bg);

    color: var(--text);
    font-family: Arial, sans-serif;
    line-height: 1.7;
    overflow-x: hidden;
}

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

/* NAVBAR */

.navbar {
    position: sticky;
    top: 0;
    z-index: 100;

    width: 100%;
    min-height: 82px;
    padding: 16px 8%;

    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 30px;

    background: rgba(7, 13, 26, .88);
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);

    border-bottom: 1px solid var(--border);
}

.brand h2 {
    font-size: 25px;
    font-weight: 800;
    letter-spacing: 3px;

    background: linear-gradient(
        120deg,
        #ffffff,
        var(--primary-light)
    );

    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.brand span {
    display: block;
    font-size: 10px;
    color: var(--muted);
    letter-spacing: 1px;
}

.navbar nav {
    display: flex;
    align-items: center;
    gap: 30px;
}

.navbar nav a {
    position: relative;

    font-size: 13px;
    font-weight: 600;
    color: var(--muted);

    transition: var(--transition);
}

.navbar nav a:hover {
    color: var(--primary-light);
}

.navbar nav a::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: -7px;

    width: 0;
    height: 2px;

    background: var(--primary);
    box-shadow: 0 0 10px var(--primary);

    transition: var(--transition);
}

.navbar nav a:hover::after {
    width: 100%;
}

/* HERO */

.hero {
    position: relative;
    isolation: isolate;

    min-height: 650px;
    padding: 120px 8%;

    display: flex;
    align-items: center;

    background:
        radial-gradient(
            ellipse at 80% 45%,
            rgba(55, 125, 255, .17),
            transparent 55%
        ),
        radial-gradient(
            ellipse at 15% 90%,
            rgba(20, 80, 180, .08),
            transparent 50%
        );

    border-bottom: 1px solid rgba(255,255,255,.025);
}

.hero::before {
    content: "";
    position: absolute;
    z-index: -1;

    width: 320px;
    height: 320px;

    right: 8%;
    top: 50%;

    transform: translateY(-50%);

    border: 1px solid rgba(67, 140, 255, .12);
    border-radius: 50%;

    box-shadow:
        0 0 80px rgba(67, 140, 255, .07),
        inset 0 0 70px rgba(67, 140, 255, .04);
}

.hero-content {
    max-width: 780px;
}

.hero-label,
.section-heading span {
    color: var(--primary-light);
    font-size: 11px;
    font-weight: 800;
    letter-spacing: 3px;
}

.hero h1 {
    font-size: clamp(38px, 6vw, 68px);
    line-height: 1.15;

    margin: 24px 0;
    letter-spacing: -2px;
}

.hero h1 span {
    display: block;
    color: var(--primary-light);
    text-shadow: 0 0 30px rgba(67, 140, 255, .2);
}

.hero p {
    max-width: 620px;

    color: var(--muted);
    font-size: 15px;

    margin-bottom: 35px;
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
}

/* BUTTONS */

.btn-primary,
.btn-secondary {
    display: inline-flex;
    justify-content: center;
    align-items: center;

    min-height: 48px;
    padding: 13px 24px;

    border-radius: 10px;

    font-size: 13px;
    font-weight: 700;

    transition: var(--transition);
}

.btn-primary {
    background: linear-gradient(
        135deg,
        #438cff,
        #2468df
    );

    color: #fff;

    border: 1px solid rgba(130, 180, 255, .25);

    box-shadow:
        0 8px 25px rgba(40, 110, 230, .2);
}

.btn-primary:hover {
    transform: translateY(-3px);

    box-shadow:
        0 12px 30px rgba(40, 110, 230, .3);
}

.btn-secondary {
    background: rgba(255,255,255,.025);
    border: 1px solid var(--border);
    color: var(--text);
}

.btn-secondary:hover {
    background: var(--surface);
    border-color: rgba(67, 140, 255, .4);
}

/* ABOUT */

.about,
.features {
    padding: 100px 8%;
}

.section-heading {
    margin-bottom: 28px;
}

.section-heading h2 {
    font-size: clamp(27px, 4vw, 39px);
    line-height: 1.3;

    margin-top: 13px;
    letter-spacing: -.8px;
}

.about > p {
    max-width: 780px;

    color: var(--muted);
    font-size: 15px;
}

/* FEATURES */

.features {
    background:
        linear-gradient(
            180deg,
            rgba(13, 25, 46, .65),
            rgba(7, 13, 26, .8)
        );
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));

    gap: 20px;
    margin-top: 45px;
}

.feature-card {
    position: relative;
    overflow: hidden;

    padding: 30px;
    min-height: 175px;

    background: linear-gradient(
        145deg,
        rgba(19, 34, 58, .95),
        rgba(13, 25, 44, .95)
    );

    border: 1px solid var(--border);
    border-radius: var(--radius);

    transition: var(--transition);
}

.feature-card::before {
    content: "";

    position: absolute;
    top: 0;
    left: 0;

    width: 45px;
    height: 2px;

    background: var(--primary);

    box-shadow: 0 0 15px var(--primary);
}

.feature-card:hover {
    transform: translateY(-5px);

    background: var(--surface-hover);
    border-color: rgba(67, 140, 255, .4);

    box-shadow:
        0 12px 35px rgba(0, 0, 0, .18),
        0 0 20px rgba(67, 140, 255, .06);
}

.feature-card h3 {
    font-size: 18px;
    margin-bottom: 10px;
}

.feature-card p {
    color: var(--muted);
    font-size: 13px;
}

/* CTA */

.cta {
    position: relative;
    overflow: hidden;

    margin: 85px 8%;
    padding: 70px 30px;

    text-align: center;

    background:
        radial-gradient(
            ellipse at 50% 0%,
            rgba(67, 140, 255, .17),
            transparent 65%
        ),
        var(--surface);

    border: 1px solid rgba(67, 140, 255, .2);
    border-radius: 22px;

    box-shadow:
        0 15px 50px rgba(0, 0, 0, .15);
}

.cta h2 {
    font-size: clamp(25px, 4vw, 37px);
    margin-bottom: 12px;
}

.cta p {
    color: var(--muted);
    font-size: 14px;
    margin-bottom: 28px;
}

/* FOOTER */

.footer {
    padding: 40px 8%;

    text-align: center;

    background: rgba(5, 10, 20, .5);
    border-top: 1px solid var(--border);
}

.footer h3 {
    font-size: 20px;
    letter-spacing: 4px;
    color: var(--primary-light);
}

.footer p {
    color: var(--muted);
    font-size: 12px;
    margin-top: 7px;
}

/* TABLET */

@media (max-width: 992px) {
    .navbar {
        padding-left: 5%;
        padding-right: 5%;
    }

    .navbar nav {
        gap: 18px;
    }

    .hero {
        padding-left: 6%;
        padding-right: 6%;
    }

    .feature-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

/* MOBILE */

@media (max-width: 768px) {
    .navbar {
        padding: 15px 6%;

        flex-direction: column;
        align-items: flex-start;
        gap: 14px;
    }

    .navbar nav {
        width: 100%;
        flex-wrap: wrap;
        gap: 12px 22px;
    }

    .navbar nav a {
        font-size: 12px;
    }

    .hero {
        min-height: 540px;
        padding: 85px 6%;
    }

    .hero::before {
        width: 210px;
        height: 210px;

        right: -80px;
        top: 75%;

        opacity: .5;
    }

    .hero h1 {
        font-size: clamp(36px, 10vw, 52px);
        letter-spacing: -1px;
    }

    .hero p {
        font-size: 14px;
    }

    .about,
    .features {
        padding: 70px 6%;
    }

    .feature-grid {
        grid-template-columns: 1fr;
        gap: 15px;
    }

    .feature-card {
        min-height: 140px;
        padding: 25px;
    }

    .cta {
        margin: 55px 6%;
        padding: 50px 20px;
    }

    .footer {
        padding: 35px 6%;
    }
}

/* SMALL MOBILE */

@media (max-width: 380px) {
    .brand h2 {
        font-size: 22px;
    }

    .navbar nav {
        gap: 10px 16px;
    }

    .hero {
        min-height: 500px;
    }

    .hero-actions {
        flex-direction: column;
    }

    .hero-actions a {
        width: 100%;
    }

    .section-heading h2 {
        font-size: 26px;
    }
}

/* REDUCE MOTION */

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        scroll-behavior: auto !important;
        transition-duration: .01ms !important;
        animation-duration: .01ms !important;
    }
}

/* MOBILE OVERFLOW FIX */

@media (max-width: 768px) {
    html,
    body {
        overflow-x: hidden;
    }

    .hero {
        overflow: hidden;
    }

    .hero::before {
        right: -100px;
        width: 180px;
        height: 180px;
    }

    .hero-content {
        min-width: 0;
    }

    .hero h1,
    .hero p {
        max-width: 100%;
    }
}