/* ================================================
   BitDev - Landing Page Styles
   ================================================ */

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

:root {
    --primary: #5F2498;
    --primary-dark: #4a1b77;
    --primary-light: #f3eafa;
    --accent: #E91E8C;
    --accent-dark: #c4177a;
    --orange: #F7941D;
    --dark: #1a0a2e;
    --dark-2: #2d1550;
    --gray-900: #111827;
    --gray-800: #1f2937;
    --gray-700: #374151;
    --gray-600: #4b5563;
    --gray-500: #6b7280;
    --gray-400: #9ca3af;
    --gray-300: #d1d5db;
    --gray-200: #e5e7eb;
    --gray-100: #f3f4f6;
    --gray-50: #f9fafb;
    --white: #ffffff;
    --gradient: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
    --gradient-text: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
    --shadow-sm: 0 1px 2px rgba(0,0,0,.05);
    --shadow: 0 1px 3px rgba(0,0,0,.1), 0 1px 2px rgba(0,0,0,.06);
    --shadow-md: 0 4px 6px -1px rgba(0,0,0,.1), 0 2px 4px -2px rgba(0,0,0,.1);
    --shadow-lg: 0 10px 15px -3px rgba(0,0,0,.1), 0 4px 6px -4px rgba(0,0,0,.1);
    --shadow-xl: 0 20px 25px -5px rgba(0,0,0,.1), 0 8px 10px -6px rgba(0,0,0,.1);
    --radius: 8px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --transition: .3s ease;
    --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --max-width: 1200px;
}

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

body {
    font-family: var(--font);
    font-size: 16px;
    line-height: 1.6;
    color: var(--gray-700);
    background: var(--white);
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}

img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; transition: color var(--transition); }
ul { list-style: none; }
h1, h2, h3, h4, h5, h6 { color: var(--dark); line-height: 1.2; font-weight: 700; }

.container {
    width: 100%;
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 24px;
}

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

.section-header { text-align: center; margin-bottom: 64px; }
.section-tag {
    display: inline-block;
    font-size: 13px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 2px;
    color: var(--primary);
    background: var(--primary-light);
    padding: 6px 16px;
    border-radius: 100px;
    margin-bottom: 16px;
}
.section-title { font-size: clamp(1.8rem, 4vw, 2.5rem); margin-bottom: 16px; }
.section-desc { font-size: 1.125rem; color: var(--gray-500); max-width: 600px; margin: 0 auto; }

/* --- Buttons --- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    font-family: var(--font);
    font-size: 15px;
    font-weight: 600;
    padding: 12px 28px;
    border-radius: var(--radius);
    border: 2px solid transparent;
    cursor: pointer;
    transition: all var(--transition);
    white-space: nowrap;
}
.btn--primary {
    background: var(--gradient);
    color: var(--white);
    border-color: transparent;
}
.btn--primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(95, 36, 152, .35);
}
.btn--outline {
    background: transparent;
    color: var(--white);
    border-color: rgba(255,255,255,.4);
}
.btn--outline:hover {
    background: rgba(255,255,255,.1);
    border-color: var(--white);
}
.btn--lg { padding: 16px 36px; font-size: 16px; }
.btn--full { width: 100%; }

/* --- Header --- */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255,255,255,.9);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid transparent;
    transition: all var(--transition);
}
.header.scrolled {
    background: rgba(255,255,255,.97);
    border-bottom-color: var(--gray-200);
    box-shadow: var(--shadow-sm);
}
.header__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
}
.header__logo img { height: 36px; width: auto; }
.header__menu { display: flex; gap: 4px; }
.header__link {
    font-size: 14px;
    font-weight: 500;
    padding: 8px 16px;
    border-radius: 6px;
    color: var(--gray-600);
    transition: all var(--transition);
}
.header__link:hover, .header__link.active {
    color: var(--primary);
    background: var(--primary-light);
}
.header__link--cta {
    background: var(--gradient);
    color: var(--white) !important;
    margin-left: 8px;
}
.header__link--cta:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(95,36,152,.3);
    background: var(--gradient) !important;
}
.header__toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}
.header__toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--dark);
    border-radius: 2px;
    transition: all var(--transition);
}
.header__toggle.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.header__toggle.active span:nth-child(2) { opacity: 0; }
.header__toggle.active span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

/* --- Hero --- */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 120px 0 80px;
    overflow: hidden;
}
.hero__bg {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, var(--dark) 0%, var(--dark-2) 50%, #1a0a2e 100%);
    z-index: 0;
}
.hero__bg::before {
    content: '';
    position: absolute;
    inset: 0;
    background:
        radial-gradient(ellipse 800px 600px at 20% 50%, rgba(95,36,152,.3) 0%, transparent 70%),
        radial-gradient(ellipse 600px 400px at 80% 30%, rgba(233,30,140,.15) 0%, transparent 70%);
}
.hero__bg::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 120px;
    background: linear-gradient(to top, var(--white), transparent);
}
.hero__inner {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 64px;
    align-items: center;
}
.hero__badge {
    display: inline-block;
    font-size: 13px;
    font-weight: 600;
    color: var(--orange);
    background: rgba(247,148,29,.1);
    border: 1px solid rgba(247,148,29,.25);
    padding: 6px 16px;
    border-radius: 100px;
    margin-bottom: 24px;
}
.hero__title {
    font-size: clamp(2.2rem, 5vw, 3.5rem);
    color: var(--white);
    margin-bottom: 20px;
    line-height: 1.15;
}
.hero__text {
    font-size: 1.125rem;
    color: var(--gray-400);
    margin-bottom: 32px;
    max-width: 520px;
    line-height: 1.7;
}
.hero__actions { display: flex; gap: 16px; margin-bottom: 48px; flex-wrap: wrap; }
.hero__stats { display: flex; gap: 40px; }
.hero__stat {
    text-align: left;
}
.hero__stat strong {
    display: block;
    font-size: 1.75rem;
    color: var(--white);
    font-weight: 800;
}
.hero__stat span {
    font-size: 13px;
    color: var(--gray-400);
}
.hero__visual { display: flex; justify-content: center; }

/* Mockup */
.hero__mockup { position: relative; }
.mockup-browser {
    width: 400px;
    background: var(--dark-2);
    border-radius: 12px;
    border: 1px solid rgba(255,255,255,.1);
    overflow: hidden;
    box-shadow: 0 25px 60px rgba(0,0,0,.4);
}
.mockup-browser__bar {
    display: flex;
    gap: 6px;
    padding: 12px 16px;
    background: rgba(255,255,255,.05);
    border-bottom: 1px solid rgba(255,255,255,.05);
}
.mockup-browser__bar span {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: rgba(255,255,255,.15);
}
.mockup-browser__bar span:first-child { background: #ff5f57; }
.mockup-browser__bar span:nth-child(2) { background: #febc2e; }
.mockup-browser__bar span:nth-child(3) { background: #28c840; }
.mockup-browser__content { padding: 20px; }
.mockup-lines { display: flex; flex-direction: column; gap: 10px; }
.mockup-line {
    border-radius: 4px;
    background: rgba(255,255,255,.06);
}
.mockup-line--header { height: 12px; width: 35%; background: rgba(233,30,140,.3); }
.mockup-line--nav { height: 6px; width: 60%; margin-bottom: 8px; }
.mockup-line--hero-block { height: 80px; border-radius: 8px; margin-bottom: 8px; background: linear-gradient(135deg, rgba(95,36,152,.2), rgba(233,30,140,.1)); }
.mockup-line--text { height: 6px; }
.mockup-line--header-sm { height: 8px; width: 50%; background: rgba(233,30,140,.3); }
.mockup-line--block-sm { height: 50px; border-radius: 6px; background: linear-gradient(135deg, rgba(95,36,152,.2), rgba(233,30,140,.1)); }
.w-80 { width: 80%; }
.w-90 { width: 90%; }
.w-70 { width: 70%; }
.w-60 { width: 60%; }
.mockup-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 8px;
    margin-top: 12px;
}
.mockup-card {
    height: 50px;
    background: rgba(255,255,255,.04);
    border-radius: 6px;
    border: 1px solid rgba(255,255,255,.05);
}

.mockup-phone {
    position: absolute;
    right: -30px;
    bottom: -20px;
    width: 130px;
    background: var(--gray-900);
    border-radius: 20px;
    border: 2px solid rgba(255,255,255,.15);
    padding: 16px 10px 20px;
    box-shadow: 0 15px 40px rgba(0,0,0,.5);
}
.mockup-phone__notch {
    width: 40px;
    height: 4px;
    background: rgba(255,255,255,.15);
    border-radius: 4px;
    margin: 0 auto 12px;
}
.mockup-phone__content { display: flex; flex-direction: column; gap: 8px; }

/* --- Services --- */
.services { padding: 100px 0; background: var(--gray-50); }
.services__grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}
.service-card {
    position: relative;
    background: var(--white);
    padding: 36px 28px;
    border-radius: var(--radius-lg);
    border: 1px solid var(--gray-200);
    transition: all var(--transition);
}
.service-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
    border-color: transparent;
}
.service-card--featured {
    background: linear-gradient(135deg, var(--dark) 0%, #2d1550 100%);
    border-color: transparent;
}
.service-card--featured .service-card__title,
.service-card--featured .service-card__text,
.service-card--featured .service-card__features li { color: var(--gray-300); }
.service-card--featured .service-card__title { color: var(--white); }
.service-card--featured .service-card__icon { background: rgba(233,30,140,.15); color: var(--accent); }
.service-card--featured .service-card__features li::before { color: var(--accent); }
.service-card__badge {
    position: absolute;
    top: -10px;
    right: 20px;
    background: var(--gradient);
    color: var(--white);
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    padding: 4px 14px;
    border-radius: 100px;
}
.service-card__icon {
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--primary-light);
    color: var(--primary);
    border-radius: 12px;
    margin-bottom: 20px;
}
.service-card__title { font-size: 1.2rem; margin-bottom: 12px; }
.service-card__text { font-size: .9rem; color: var(--gray-500); margin-bottom: 20px; line-height: 1.6; }
.service-card__features { display: flex; flex-direction: column; gap: 8px; }
.service-card__features li {
    font-size: .85rem;
    color: var(--gray-600);
    display: flex;
    align-items: center;
    gap: 8px;
}
.service-card__features li::before {
    content: '✓';
    color: var(--primary);
    font-weight: 700;
    font-size: 14px;
}

/* --- About --- */
.about { padding: 100px 0; }
.about__inner {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}
.about__visual { position: relative; }
.about__image-wrapper { position: relative; }
.about__pattern {
    position: absolute;
    top: -20px;
    left: -20px;
    width: 120px;
    height: 120px;
    background: repeating-linear-gradient(
        45deg,
        var(--primary-light),
        var(--primary-light) 4px,
        transparent 4px,
        transparent 12px
    );
    border-radius: var(--radius-lg);
    opacity: .5;
}
.about__code-block {
    position: relative;
    background: var(--dark);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-xl);
    border: 1px solid rgba(255,255,255,.1);
}
.code-header {
    display: flex;
    gap: 6px;
    padding: 12px 16px;
    background: rgba(255,255,255,.05);
    border-bottom: 1px solid rgba(255,255,255,.05);
}
.code-header span {
    width: 10px;
    height: 10px;
    border-radius: 50%;
}
.code-header span:first-child { background: #ff5f57; }
.code-header span:nth-child(2) { background: #febc2e; }
.code-header span:nth-child(3) { background: #28c840; }
.about__code-block pre {
    padding: 24px;
    font-family: 'SF Mono', 'Fira Code', monospace;
    font-size: 14px;
    line-height: 1.8;
    color: var(--gray-400);
    overflow-x: auto;
}
.code-keyword { color: #c792ea; }
.code-var { color: #82aaff; }
.code-prop { color: #f07178; }
.code-string { color: #c3e88d; }
.code-number { color: #f78c6c; }

.about__content p { margin-bottom: 16px; color: var(--gray-600); }
.about__content p strong { color: var(--dark); }
.about__highlights { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-top: 24px; }
.about__highlight {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: .9rem;
    color: var(--gray-700);
    font-weight: 500;
}
.about__highlight svg { color: var(--primary); flex-shrink: 0; }

/* --- Features --- */
.features { padding: 100px 0; background: var(--gray-50); }
.features__grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}
.feature-card {
    text-align: center;
    padding: 40px 28px;
    background: var(--white);
    border-radius: var(--radius-lg);
    border: 1px solid var(--gray-200);
    transition: all var(--transition);
}
.feature-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: rgba(95,36,152,.2);
}
.feature-card__icon {
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--primary-light);
    color: var(--primary);
    border-radius: 50%;
    margin: 0 auto 20px;
    transition: all var(--transition);
}
.feature-card:hover .feature-card__icon {
    background: var(--gradient);
    color: var(--white);
}
.feature-card__title { font-size: 1.1rem; margin-bottom: 10px; }
.feature-card__text { font-size: .9rem; color: var(--gray-500); line-height: 1.6; }

/* --- Process --- */
.process { padding: 100px 0; }
.process__timeline {
    max-width: 700px;
    margin: 0 auto;
    position: relative;
}
.process__timeline::before {
    content: '';
    position: absolute;
    left: 36px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--gray-200);
}
.process__step {
    display: flex;
    gap: 32px;
    margin-bottom: 40px;
    position: relative;
}
.process__step:last-child { margin-bottom: 0; }
.process__number {
    flex-shrink: 0;
    width: 72px;
    height: 72px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient);
    color: var(--white);
    font-size: 1.25rem;
    font-weight: 800;
    border-radius: 50%;
    box-shadow: 0 4px 15px rgba(95,36,152,.3);
    position: relative;
    z-index: 1;
}
.process__content { padding-top: 12px; }
.process__content h3 { font-size: 1.2rem; margin-bottom: 8px; }
.process__content p { color: var(--gray-500); font-size: .95rem; line-height: 1.6; }

/* --- CTA --- */
.cta {
    padding: 80px 0;
    background: linear-gradient(135deg, var(--dark) 0%, #2d1550 100%);
    text-align: center;
}
.cta__title {
    font-size: clamp(1.6rem, 3.5vw, 2.2rem);
    color: var(--white);
    margin-bottom: 16px;
}
.cta__text {
    color: var(--gray-400);
    font-size: 1.1rem;
    margin-bottom: 32px;
    max-width: 550px;
    margin-left: auto;
    margin-right: auto;
}

/* --- Contact --- */
.contact { padding: 100px 0; background: var(--gray-50); }
.contact__inner {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 64px;
    align-items: start;
}
.contact__info .section-title { text-align: left; }
.contact__info p { color: var(--gray-500); margin-bottom: 32px; line-height: 1.7; }
.contact__details { display: flex; flex-direction: column; gap: 16px; }
.contact__detail {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: .95rem;
    color: var(--gray-600);
}
.contact__detail svg { color: var(--primary); flex-shrink: 0; }
.contact__detail a:hover { color: var(--primary); }

.contact-form {
    background: var(--white);
    padding: 40px;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--gray-200);
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}
.form-group--full { grid-column: 1 / -1; }
.form-label {
    display: block;
    font-size: 13px;
    font-weight: 600;
    color: var(--gray-700);
    margin-bottom: 6px;
}
.required { color: #ef4444; }
.form-input {
    width: 100%;
    padding: 12px 16px;
    font-family: var(--font);
    font-size: 15px;
    color: var(--dark);
    background: var(--gray-50);
    border: 1.5px solid var(--gray-200);
    border-radius: var(--radius);
    transition: all var(--transition);
    outline: none;
}
.form-input::placeholder { color: var(--gray-400); }
.form-input:focus {
    border-color: var(--primary);
    background: var(--white);
    box-shadow: 0 0 0 3px rgba(95,36,152,.15);
}
.form-input.error { border-color: #ef4444; }
.form-textarea { resize: vertical; min-height: 120px; }
select.form-input { cursor: pointer; appearance: none; background-image: url("data:image/svg+xml,%3Csvg width='10' height='6' viewBox='0 0 10 6' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M1 1l4 4 4-4' stroke='%236b7280' stroke-width='1.5' fill='none' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: right 14px center; padding-right: 36px; }

.btn__loading { display: none; align-items: center; gap: 8px; }
.btn.loading .btn__text { display: none; }
.btn.loading .btn__loading { display: inline-flex; }
.spinner { animation: spin 1s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }

.form-message {
    grid-column: 1 / -1;
    padding: 0;
    border-radius: var(--radius);
    font-size: .9rem;
    font-weight: 500;
    transition: all var(--transition);
    display: none;
}
.form-message.show { display: block; padding: 14px 18px; }
.form-message.success { background: #ecfdf5; color: #065f46; border: 1px solid #a7f3d0; }
.form-message.error { background: #fef2f2; color: #991b1b; border: 1px solid #fecaca; }

/* --- Footer --- */
.footer {
    background: var(--dark);
    padding: 64px 0 0;
    color: var(--gray-400);
}
.footer__inner {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 48px;
    padding-bottom: 48px;
    border-bottom: 1px solid rgba(255,255,255,.08);
}
.footer__brand p { font-size: .9rem; margin-top: 16px; line-height: 1.7; max-width: 320px; }
.footer__brand img { filter: brightness(10); }
.footer__links h4 {
    color: var(--white);
    font-size: .85rem;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    margin-bottom: 20px;
}
.footer__links a {
    font-size: .9rem;
    color: var(--gray-400);
    transition: color var(--transition);
}
.footer__links a:hover { color: var(--white); }
.footer__links li + li { margin-top: 10px; }
.footer__bottom {
    padding: 24px 0;
    text-align: center;
    font-size: .85rem;
}

/* --- Back to top --- */
.back-to-top {
    position: fixed;
    bottom: 32px;
    right: 32px;
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--primary);
    color: var(--white);
    border: none;
    border-radius: 50%;
    cursor: pointer;
    box-shadow: var(--shadow-lg);
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: all var(--transition);
    z-index: 99;
}
.back-to-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}
.back-to-top:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
}

/* --- Animations --- */
[data-animate] {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity .6s ease, transform .6s ease;
}
[data-animate].animated {
    opacity: 1;
    transform: translateY(0);
}

/* --- Responsive --- */
@media (max-width: 1024px) {
    .hero__inner { grid-template-columns: 1fr; gap: 48px; }
    .hero__visual { order: -1; }
    .hero__content { text-align: center; }
    .hero__text { margin: 0 auto 32px; }
    .hero__actions { justify-content: center; }
    .hero__stats { justify-content: center; }
    .services__grid { grid-template-columns: repeat(2, 1fr); }
    .about__inner { grid-template-columns: 1fr; gap: 48px; }
    .features__grid { grid-template-columns: repeat(2, 1fr); }
    .contact__inner { grid-template-columns: 1fr; gap: 48px; }
    .footer__inner { grid-template-columns: 1fr 1fr; gap: 32px; }
    .footer__brand { grid-column: 1 / -1; }
}

@media (max-width: 768px) {
    .header {
        overflow: hidden;
    }
    .header.menu-open {
        overflow: visible;
    }
    .header__nav {
        position: absolute;
        top: 72px;
        left: 0;
        right: 0;
        background: var(--white);
        border-bottom: 1px solid var(--gray-200);
        padding: 12px 24px 20px;
        box-shadow: var(--shadow-lg);
        display: none;
    }
    .header__nav.open {
        display: block;
    }
    .header__menu {
        flex-direction: column;
        gap: 0;
    }
    .header__link {
        padding: 12px 16px;
        font-size: 15px;
        display: block;
    }
    .header__link--cta {
        margin-left: 0;
        margin-top: 16px;
        padding: 14px 20px;
        text-align: center;
        border-radius: var(--radius);
    }
    .header__toggle { display: flex; }

    .hero { min-height: auto; padding: 120px 0 60px; }
    .hero__stats { flex-wrap: wrap; gap: 24px; }
    .mockup-browser { width: 300px; }
    .mockup-phone { width: 100px; right: -15px; }

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

    .contact-form {
        grid-template-columns: 1fr;
        padding: 28px 20px;
    }

    .process__timeline::before { left: 28px; }
    .process__number { width: 56px; height: 56px; font-size: 1rem; }
    .process__step { gap: 20px; }

    .footer__inner { grid-template-columns: 1fr; gap: 32px; }
    .about__highlights { grid-template-columns: 1fr; }
}

@media (max-width: 480px) {
    .hero__title { font-size: 1.8rem; }
    .hero__actions { flex-direction: column; }
    .hero__actions .btn { width: 100%; }
    .mockup-browser { width: 260px; }
    .mockup-phone { display: none; }
    .section-title { font-size: 1.6rem; }
}