/* ===================================================================
   ALCEU MELLO ENGENHARIA — LANDING PAGE STYLES
   Design System: Azul Corporativo + Cinza Elegante (harmonizado com a logo)
   =================================================================== */

/* ── CSS RESET & VARIABLES ───────────────────────────────────────── */

:root {
    /* Primary — from logo blue */
    --color-primary:        #2A5CAA;
    --color-primary-dark:   #1E4280;
    --color-primary-darker: #152E5A;
    --color-primary-light:  #3A6FBD;

    /* Accent */
    --color-accent:         #4A90D9;
    --color-accent-light:   #7BB3E8;
    --color-accent-glow:    rgba(74,144,217,0.25);

    /* Neutrals — from logo grays */
    --color-neutral-900:    #1A2332;
    --color-neutral-800:    #1F2D3D;
    --color-neutral-700:    #2B3A4E;
    --color-neutral-600:    #4A5568;
    --color-neutral-500:    #718096;
    --color-neutral-400:    #A0AEC0;
    --color-neutral-300:    #CBD5E0;
    --color-neutral-200:    #E2E8F0;
    --color-neutral-100:    #EDF2F7;
    --color-neutral-50:     #F7FAFC;
    --color-white:          #FFFFFF;

    /* Functional */
    --color-whatsapp:       #25D366;
    --color-whatsapp-dark:  #1EBE57;

    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --fs-xs:    0.75rem;
    --fs-sm:    0.875rem;
    --fs-base:  1rem;
    --fs-md:    1.125rem;
    --fs-lg:    1.25rem;
    --fs-xl:    1.5rem;
    --fs-2xl:   2rem;
    --fs-3xl:   2.75rem;
    --fs-4xl:   3.25rem;
    --fs-hero:  4rem;

    /* Spacing */
    --space-1: 0.25rem;
    --space-2: 0.5rem;
    --space-3: 0.75rem;
    --space-4: 1rem;
    --space-5: 1.25rem;
    --space-6: 1.5rem;
    --space-8: 2rem;
    --space-10: 2.5rem;
    --space-12: 3rem;
    --space-16: 4rem;
    --space-20: 5rem;
    --space-24: 6rem;
    --space-32: 8rem;

    /* Misc */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-xl: 28px;
    --radius-full: 9999px;
    --shadow-sm: 0 1px 3px rgba(42,92,170,0.06), 0 1px 2px rgba(0,0,0,0.04);
    --shadow-md: 0 4px 16px rgba(42,92,170,0.08), 0 2px 4px rgba(0,0,0,0.04);
    --shadow-lg: 0 10px 40px rgba(42,92,170,0.12), 0 4px 8px rgba(0,0,0,0.04);
    --shadow-xl: 0 20px 60px rgba(42,92,170,0.15), 0 8px 16px rgba(0,0,0,0.04);
    --shadow-glow: 0 0 40px rgba(74,144,217,0.2);
    --transition: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    --header-h: 80px;
}

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: var(--header-h);
}

body {
    font-family: var(--font-family);
    font-size: var(--fs-base);
    line-height: 1.7;
    color: var(--color-neutral-600);
    background: var(--color-white);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

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

a {
    text-decoration: none;
    color: inherit;
    transition: color var(--transition-fast);
}

ul { list-style: none; }

/* ── FOCUS VISIBLE (Accessibility) ─────────────────────────────── */

:focus-visible {
    outline: 3px solid var(--color-accent);
    outline-offset: 3px;
    border-radius: 4px;
}

/* Remove default focus outline for mouse users */
:focus:not(:focus-visible) {
    outline: none;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-6);
}

/* ── SECTION UTILITIES ───────────────────────────────────────────── */

.section-tag {
    display: inline-flex;
    align-items: center;
    gap: var(--space-3);
    font-size: var(--fs-xs);
    font-weight: 700;
    letter-spacing: 3px;
    text-transform: uppercase;
    color: var(--color-primary);
    margin-bottom: var(--space-5);
}

.section-tag::before {
    content: '';
    display: inline-block;
    width: 32px;
    height: 2px;
    background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
    border-radius: 2px;
}

.section-title {
    font-size: var(--fs-3xl);
    font-weight: 800;
    color: var(--color-neutral-700);
    line-height: 1.15;
    margin-bottom: var(--space-6);
    letter-spacing: -0.5px;
}

.section-subtitle {
    font-size: var(--fs-md);
    color: var(--color-neutral-500);
    max-width: 560px;
    line-height: 1.7;
}

/* ── BUTTONS ─────────────────────────────────────────────────────── */

.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    font-family: var(--font-family);
    font-size: var(--fs-sm);
    font-weight: 600;
    padding: 14px 32px;
    border-radius: var(--radius-full);
    border: 2px solid transparent;
    cursor: pointer;
    transition: all var(--transition);
    white-space: nowrap;
    position: relative;
    overflow: hidden;
}

.btn--primary {
    background: var(--color-primary);
    color: var(--color-white);
    border-color: var(--color-primary);
    box-shadow: 0 4px 16px rgba(42,92,170,0.25);
}

.btn--primary:hover {
    background: var(--color-primary-light);
    border-color: var(--color-primary-light);
    transform: translateY(-3px);
    box-shadow: 0 8px 28px rgba(42,92,170,0.35);
}

.btn--outline {
    background: rgba(255,255,255,0.08);
    color: var(--color-white);
    border-color: rgba(255,255,255,0.35);
    backdrop-filter: blur(4px);
}

.btn--outline:hover {
    background: rgba(255,255,255,0.15);
    border-color: rgba(255,255,255,0.7);
    transform: translateY(-3px);
}

.btn--whatsapp-header {
    background: var(--color-whatsapp);
    color: var(--color-white);
    border-color: var(--color-whatsapp);
    padding: 10px 22px;
    font-size: var(--fs-sm);
    box-shadow: 0 2px 12px rgba(37,211,102,0.25);
}

.btn--whatsapp-header:hover {
    background: var(--color-whatsapp-dark);
    border-color: var(--color-whatsapp-dark);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(37,211,102,0.4);
}

.btn--whatsapp-large {
    background: var(--color-whatsapp);
    color: var(--color-white);
    border-color: var(--color-whatsapp);
    padding: 18px 44px;
    font-size: var(--fs-md);
    border-radius: var(--radius-full);
    box-shadow: 0 4px 20px rgba(37,211,102,0.3);
}

.btn--whatsapp-large:hover {
    background: var(--color-whatsapp-dark);
    border-color: var(--color-whatsapp-dark);
    transform: translateY(-3px);
    box-shadow: 0 10px 32px rgba(37,211,102,0.45);
}

/* ── HEADER ──────────────────────────────────────────────────────── */

.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: var(--header-h);
    z-index: 1000;
    transition: all var(--transition);
}

.header.scrolled {
    background: rgba(26, 35, 50, 0.92);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    box-shadow: 0 1px 0 rgba(255,255,255,0.05), var(--shadow-md);
}

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

/* Logo */
.logo {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    color: var(--color-white);
}

.logo__icon {
    flex-shrink: 0;
}

.logo__text {
    display: flex;
    flex-direction: column;
    line-height: 1.2;
}

.logo__name {
    font-size: var(--fs-sm);
    font-weight: 700;
    letter-spacing: 1.5px;
}

.logo__title {
    font-size: var(--fs-xs);
    font-weight: 500;
    opacity: 0.7;
    letter-spacing: 1px;
}

.logo__img {
    height: 58px;
    width: auto;
    object-fit: contain;
    transition: all var(--transition);
    filter: drop-shadow(0 2px 6px rgba(0,0,0,0.15));
}

.logo__img:hover {
    filter: drop-shadow(0 4px 12px rgba(42,92,170,0.35));
    transform: scale(1.04);
}

.logo__img--footer {
    height: 48px;
    opacity: 0.85;
    filter: brightness(0) invert(1) drop-shadow(0 2px 6px rgba(0,0,0,0.25));
}

.logo__img--footer:hover {
    opacity: 1;
    filter: brightness(0) invert(1) drop-shadow(0 4px 12px rgba(255,255,255,0.25));
    transform: scale(1.04);
}

/* Navigation */
.nav__list {
    display: flex;
    align-items: center;
    gap: var(--space-10);
}

.nav__link {
    font-size: var(--fs-sm);
    font-weight: 500;
    color: rgba(255,255,255,0.75);
    position: relative;
    padding: var(--space-2) 0;
    letter-spacing: 0.3px;
}

.nav__link::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 50%;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--color-accent), var(--color-accent-light));
    transition: all var(--transition);
    border-radius: 2px;
    transform: translateX(-50%);
}

.nav__link:hover,
.nav__link.active {
    color: var(--color-white);
}

.nav__link:hover::after,
.nav__link.active::after {
    width: 100%;
}

/* Hamburger */
.hamburger {
    display: none;
    flex-direction: column;
    gap: 6px;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--space-2);
    z-index: 1010;
}

.hamburger span {
    width: 24px;
    height: 2px;
    background: var(--color-white);
    transition: all var(--transition);
    border-radius: 2px;
}

.hamburger.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 6px);
}

.hamburger.active span:nth-child(2) {
    opacity: 0;
    transform: translateX(-10px);
}

.hamburger.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -6px);
}

/* ── HERO ────────────────────────────────────────────────────────── */

.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    background: url('https://images.unsplash.com/photo-1486406146926-c627a92ad1ab?w=1920&q=80') center/cover no-repeat;
    overflow: hidden;
}

.hero__overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(
        160deg,
        rgba(21, 46, 90, 0.88) 0%,
        rgba(30, 66, 128, 0.76) 40%,
        rgba(42, 92, 170, 0.65) 100%
    );
}

/* Geometric decoration */
.hero__overlay::before {
    content: '';
    position: absolute;
    top: -20%;
    right: -10%;
    width: 600px;
    height: 600px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(74,144,217,0.06) 0%, transparent 70%);
    animation: heroGlow 8s ease-in-out infinite alternate;
}

.hero__overlay::after {
    content: '';
    position: absolute;
    bottom: -15%;
    left: 20%;
    width: 400px;
    height: 400px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(123,179,232,0.04) 0%, transparent 70%);
    animation: heroGlow 10s ease-in-out infinite alternate-reverse;
}

@keyframes heroGlow {
    0% { transform: scale(1) translate(0, 0); }
    100% { transform: scale(1.15) translate(20px, -15px); }
}

.hero__content {
    position: relative;
    z-index: 2;
    padding: calc(var(--header-h) + var(--space-20)) 0 var(--space-20);
    max-width: 800px;
    text-align: center;
    margin: 0 auto;
}

.hero__badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    font-size: var(--fs-xs);
    font-weight: 600;
    color: var(--color-accent-light);
    letter-spacing: 2.5px;
    margin-bottom: var(--space-10);
    padding: var(--space-2) var(--space-5);
    border: 1px solid rgba(74,144,217,0.25);
    border-radius: var(--radius-full);
    background: rgba(74,144,217,0.08);
    backdrop-filter: blur(8px);
}

.hero__title {
    font-size: var(--fs-hero);
    font-weight: 800;
    color: var(--color-white);
    line-height: 1.18;
    margin-bottom: var(--space-8);
    letter-spacing: -1.5px;
}

.hero__title span {
    background: linear-gradient(135deg, var(--color-accent-light), #fff);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero__subtitle {
    font-size: var(--fs-lg);
    color: rgba(255,255,255,0.88);
    line-height: 1.8;
    margin-bottom: var(--space-12);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
    font-weight: 300;
}

.hero__ctas {
    display: flex;
    gap: var(--space-4);
    margin-bottom: var(--space-16);
    flex-wrap: wrap;
    justify-content: center;
}

.hero__trust {
    display: flex;
    gap: var(--space-10);
    flex-wrap: wrap;
    padding-top: var(--space-8);
    border-top: 1px solid rgba(255,255,255,0.08);
    justify-content: center;
}

.hero__trust-item {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    font-size: var(--fs-sm);
    color: rgba(255,255,255,0.6);
    font-weight: 400;
}

.hero__trust-item svg {
    color: var(--color-accent-light);
    opacity: 0.8;
}

/* ── ABOUT / SOBRE MIM ───────────────────────────────────────────── */

.about {
    padding: var(--space-32) 0;
    background: var(--color-white);
    position: relative;
}

.about::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--color-neutral-200), transparent);
}

.about__inner {
    display: grid;
    grid-template-columns: 0.9fr 1.1fr;
    gap: var(--space-20);
    align-items: center;
}

.about__image {
    position: relative;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-xl);
}

.about__image::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: var(--radius-lg);
    border: 1px solid rgba(42,92,170,0.1);
    z-index: 1;
    pointer-events: none;
}

.about__image img {
    width: 100%;
    height: 520px;
    object-fit: cover;
    transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.about__image:hover img {
    transform: scale(1.03);
}

.about__image-badge {
    position: absolute;
    bottom: var(--space-6);
    right: var(--space-6);
    display: flex;
    align-items: center;
    gap: var(--space-3);
    background: var(--color-white);
    padding: var(--space-4) var(--space-5);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
    z-index: 2;
    border: 1px solid var(--color-neutral-200);
}

.about__image-badge span {
    font-size: var(--fs-xs);
    font-weight: 700;
    color: var(--color-primary);
    line-height: 1.3;
}

.about__text {
    font-size: var(--fs-base);
    color: var(--color-neutral-600);
    line-height: 1.85;
    margin-bottom: var(--space-4);
}

.about__highlights {
    margin-top: var(--space-10);
    display: flex;
    flex-direction: column;
    gap: var(--space-6);
}

.about__highlights li {
    display: flex;
    align-items: flex-start;
    gap: var(--space-4);
    padding: var(--space-4);
    border-radius: var(--radius-md);
    transition: all var(--transition);
}

.about__highlights li:hover {
    background: var(--color-neutral-50);
}

.about__highlight-icon {
    flex-shrink: 0;
    width: 48px;
    height: 48px;
    border-radius: var(--radius-md);
    background: linear-gradient(135deg, rgba(42,92,170,0.06), rgba(74,144,217,0.1));
    border: 1px solid rgba(42,92,170,0.08);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-primary);
    transition: all var(--transition);
}

.about__highlights li:hover .about__highlight-icon {
    background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
    color: var(--color-white);
    border-color: transparent;
    box-shadow: 0 4px 16px rgba(42,92,170,0.25);
}

.about__highlights li strong {
    display: block;
    font-size: var(--fs-sm);
    font-weight: 700;
    color: var(--color-neutral-700);
    margin-bottom: 2px;
}

.about__highlights li span {
    font-size: var(--fs-sm);
    color: var(--color-neutral-500);
}

/* Stats Row */
.about__stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-6);
    margin-top: var(--space-10);
    padding-top: var(--space-8);
    border-top: 1px solid var(--color-neutral-200);
}

.about__stat {
    text-align: center;
}

.about__stat-number {
    font-size: var(--fs-2xl);
    font-weight: 800;
    color: var(--color-primary);
    line-height: 1;
    margin-bottom: var(--space-1);
}

.about__stat-label {
    font-size: var(--fs-xs);
    font-weight: 500;
    color: var(--color-neutral-500);
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* ── SERVICES ────────────────────────────────────────────────────── */

.services {
    padding: var(--space-20) 0 var(--space-24);
    background: var(--color-neutral-50);
    position: relative;
}

.services::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--color-neutral-200), transparent);
}

.services__header {
    text-align: center;
    margin-bottom: var(--space-16);
}

.services__header .section-tag {
    justify-content: center;
}

.services__header .section-tag::before {
    display: none;
}

.services__header .section-subtitle {
    margin: 0 auto;
}

.services__grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-8);
}

.service-card {
    background: var(--color-white);
    border-radius: var(--radius-lg);
    padding: var(--space-10) var(--space-8);
    border: 1px solid var(--color-neutral-200);
    transition: all var(--transition);
    position: relative;
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
    transform: scaleX(0);
    transform-origin: left;
    transition: transform var(--transition);
}

.service-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
    border-color: rgba(42,92,170,0.12);
}

.service-card:hover::before {
    transform: scaleX(1);
}

.service-card__icon {
    width: 56px;
    height: 56px;
    border-radius: var(--radius-md);
    background: linear-gradient(135deg, rgba(42,92,170,0.06), rgba(74,144,217,0.1));
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--space-5);
    color: var(--color-primary);
    transition: all var(--transition);
}

.service-card:hover .service-card__icon {
    background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
    color: var(--color-white);
    transform: scale(1.08);
    box-shadow: 0 4px 16px rgba(42,92,170,0.3);
}

.service-card__title {
    font-size: var(--fs-lg);
    font-weight: 700;
    color: var(--color-neutral-700);
    margin-bottom: var(--space-3);
    line-height: 1.3;
}

.service-card__desc {
    font-size: var(--fs-sm);
    color: var(--color-neutral-500);
    line-height: 1.75;
    flex: 1;
}

/* CTA card variant */
.service-card--cta {
    background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
    border-color: transparent;
    display: flex;
    flex-direction: column;
}

.service-card--cta .service-card__icon {
    background: rgba(255,255,255,0.15);
    border-color: rgba(255,255,255,0.2);
}

.service-card--cta .service-card__icon svg {
    stroke: var(--color-white);
}

.service-card--cta .service-card__title {
    color: var(--color-white);
}

.service-card--cta .service-card__desc {
    color: rgba(255,255,255,0.75);
}

.service-card__cta {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    margin-top: var(--space-5);
    padding-top: var(--space-5);
    font-size: var(--fs-sm);
    font-weight: 600;
    color: var(--color-white);
    text-decoration: none;
    border-top: 1px solid rgba(255,255,255,0.2);
    transition: gap var(--transition-fast);
}

.service-card__cta:hover {
    gap: var(--space-3);
}

/* ── CTA BAND ────────────────────────────────────────────────────── */

.cta-band {
    position: relative;
    padding: var(--space-32) 0;
    background: linear-gradient(160deg, var(--color-primary-darker) 0%, var(--color-primary-dark) 50%, var(--color-primary) 100%);
    overflow: hidden;
}

.cta-band__bg {
    position: absolute;
    inset: 0;
    background:
        radial-gradient(ellipse at 15% 50%, rgba(74,144,217,0.08) 0%, transparent 50%),
        radial-gradient(ellipse at 85% 30%, rgba(123,179,232,0.05) 0%, transparent 50%);
}

/* Subtle geometric shapes */
.cta-band__bg::before {
    content: '';
    position: absolute;
    top: -50px;
    right: -50px;
    width: 300px;
    height: 300px;
    border: 1px solid rgba(255,255,255,0.04);
    border-radius: 50%;
}

.cta-band__bg::after {
    content: '';
    position: absolute;
    bottom: -30px;
    left: 10%;
    width: 200px;
    height: 200px;
    border: 1px solid rgba(255,255,255,0.03);
    border-radius: 50%;
}

.cta-band__inner {
    position: relative;
    text-align: center;
    z-index: 1;
}

.cta-band__icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 80px;
    height: 80px;
    border-radius: 50%;
    background: rgba(255,255,255,0.06);
    border: 1px solid rgba(255,255,255,0.1);
    color: var(--color-accent-light);
    margin-bottom: var(--space-8);
    transition: all var(--transition);
}

.cta-band__icon:hover {
    background: rgba(255,255,255,0.1);
    transform: scale(1.05);
}

.cta-band__title {
    font-size: var(--fs-3xl);
    font-weight: 800;
    color: var(--color-white);
    line-height: 1.15;
    margin-bottom: var(--space-5);
    max-width: 650px;
    margin-left: auto;
    margin-right: auto;
    letter-spacing: -0.5px;
}

.cta-band__subtitle {
    font-size: var(--fs-md);
    color: rgba(255,255,255,0.82);
    margin-bottom: var(--space-12);
    max-width: 480px;
    margin-left: auto;
    margin-right: auto;
    font-weight: 300;
    line-height: 1.7;
}

/* ── FOOTER ──────────────────────────────────────────────────────── */

.footer {
    background: var(--color-neutral-900);
    color: rgba(255,255,255,0.65);
    padding-top: var(--space-20);
}

.footer__inner {
    display: grid;
    grid-template-columns: 1.4fr 1fr 0.8fr;
    gap: var(--space-12);
    padding-bottom: var(--space-12);
    border-bottom: 1px solid rgba(255,255,255,0.06);
}

.footer .logo--light {
    margin-bottom: var(--space-5);
}

.footer__slogan {
    font-size: var(--fs-sm);
    color: rgba(255,255,255,0.4);
    max-width: 280px;
    line-height: 1.6;
    letter-spacing: 1px;
}

.footer__heading {
    font-size: var(--fs-xs);
    font-weight: 700;
    color: rgba(255,255,255,0.9);
    letter-spacing: 2px;
    text-transform: uppercase;
    margin-bottom: var(--space-6);
}

.footer__list {
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
}

.footer__list li {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    font-size: var(--fs-sm);
}

.footer__list li svg {
    flex-shrink: 0;
    color: var(--color-accent);
    opacity: 0.7;
}

.footer__list a {
    transition: all var(--transition-fast);
}

.footer__list a:hover {
    color: var(--color-white);
    transform: translateX(2px);
}

.footer__bottom {
    padding: var(--space-6) 0;
    text-align: center;
    font-size: var(--fs-xs);
    color: rgba(255,255,255,0.25);
}

/* ── WHATSAPP FLOAT ──────────────────────────────────────────────── */

.whatsapp-float {
    position: fixed;
    bottom: 28px;
    right: 28px;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: var(--color-whatsapp);
    color: var(--color-white);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 20px rgba(37,211,102,0.4);
    z-index: 999;
    transition: all var(--transition);
    animation: waPulse 2.5s infinite;
}

.whatsapp-float:hover {
    transform: scale(1.12);
    box-shadow: 0 6px 32px rgba(37,211,102,0.55);
}

@keyframes waPulse {
    0%, 100% {
        box-shadow: 0 4px 20px rgba(37,211,102,0.4);
    }
    50% {
        box-shadow: 0 4px 28px rgba(37,211,102,0.6), 0 0 0 12px rgba(37,211,102,0.08);
    }
}

/* ── PORTFOLIO / INSTAGRAM FEED ──────────────────────────────────── */

.instagram {
    padding: var(--space-8) 0 0;
    background: var(--color-neutral-50);
}

.instagram__cta {
    text-align: center;
}

/* Instagram gradient CTA */
.btn--instagram {
    display: inline-flex;
    align-items: center;
    gap: var(--space-3);
    padding: 14px 28px;
    font-size: var(--fs-sm);
    font-weight: 600;
    color: var(--color-white);
    background: linear-gradient(45deg, #405de6, #833ab4, #c13584, #e1306c, #fd1d1d, #f77737);
    background-size: 300% 300%;
    border: none;
    border-radius: var(--radius-full);
    text-decoration: none;
    cursor: pointer;
    transition: all 0.4s ease;
    box-shadow: 0 4px 16px rgba(225, 48, 108, 0.3);
    animation: igShift 6s ease infinite;
}

@keyframes igShift {
    0%, 100% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
}

.btn--instagram:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 24px rgba(225, 48, 108, 0.45);
}

.btn--instagram svg {
    flex-shrink: 0;
}

/* ── SCROLL REVEAL ───────────────────────────────────────────────── */

.reveal {
    opacity: 0;
    transform: translateY(35px);
    transition: opacity 0.8s cubic-bezier(0.4, 0, 0.2, 1), transform 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.reveal.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ── RESPONSIVE ──────────────────────────────────────────────────── */

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

    .hero__title {
        font-size: var(--fs-4xl);
    }

    .section-title {
        font-size: var(--fs-2xl);
    }

    .cta-band__title {
        font-size: var(--fs-2xl);
    }

    .about__inner {
        gap: var(--space-12);
    }
}

@media (max-width: 768px) {
    :root {
        --header-h: 70px;
    }

    .hamburger {
        display: flex;
    }

    .nav {
        position: fixed;
        top: 0;
        right: -100%;
        width: 300px;
        height: 100vh;
        background: var(--color-neutral-800);
        padding: calc(var(--header-h) + var(--space-10)) var(--space-8) var(--space-8);
        transition: right var(--transition);
        box-shadow: var(--shadow-xl);
        z-index: 1000;
        backdrop-filter: blur(20px);
    }

    .nav.open {
        right: 0;
    }

    .nav__list {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--space-6);
    }

    .nav__link {
        font-size: var(--fs-md);
        padding: var(--space-2) 0;
    }

    .btn--whatsapp-header {
        display: none;
    }

    /* Hero */
    .hero__content {
        padding-left: var(--space-6);
        padding-right: var(--space-6);
    }

    .hero__title {
        font-size: var(--fs-2xl);
        letter-spacing: -0.5px;
    }

    .hero__subtitle {
        font-size: var(--fs-base);
        padding: 0 var(--space-2);
    }

    .hero__ctas {
        flex-direction: column;
        padding: 0 var(--space-4);
    }

    .hero__ctas .btn {
        text-align: center;
        justify-content: center;
        width: 100%;
    }

    .btn--outline {
        background: rgba(255,255,255,0.1);
        backdrop-filter: blur(8px);
    }

    .hero__trust {
        flex-direction: column;
        gap: var(--space-4);
        align-items: center;
        padding: var(--space-6) var(--space-4) 0;
    }

    .hero__trust-item {
        font-size: var(--fs-xs);
    }

    /* About */
    .about {
        padding: var(--space-20) 0;
    }

    .about__inner {
        grid-template-columns: 1fr;
        gap: var(--space-10);
    }

    .about__image img {
        height: 320px;
    }

    .about__content {
        padding: 0 var(--space-2);
    }

    .about__stats {
        gap: var(--space-4);
    }

    .about__stat-label {
        font-size: 11px;
    }

    /* Services */
    .services {
        padding: var(--space-20) 0;
    }

    .services__grid {
        grid-template-columns: 1fr;
        gap: var(--space-4);
    }

    .service-card {
        padding: var(--space-6) var(--space-5);
    }

    .service-card__title {
        font-size: var(--fs-md);
    }

    /* CTA Band */
    .cta-band {
        padding: var(--space-20) 0;
    }

    .cta-band__title {
        font-size: var(--fs-xl);
        padding: 0 var(--space-2);
    }

    .cta-band__subtitle {
        padding: 0 var(--space-4);
    }

    .btn--whatsapp-large {
        padding: 16px 28px;
        font-size: var(--fs-base);
    }

    /* Instagram */
    .instagram {
        padding: var(--space-8) 0 0;
    }



    /* Footer */
    .footer {
        padding: var(--space-16) 0 var(--space-8);
    }

    .footer__inner {
        grid-template-columns: 1fr;
        gap: var(--space-10);
    }

    .footer__bottom {
        margin-top: var(--space-8);
        padding-bottom: var(--space-16);
    }

    /* WhatsApp Float — reduce size and reposition to avoid content overlap */
    .whatsapp-float {
        bottom: 16px;
        right: 16px;
        width: 48px;
        height: 48px;
    }

    .whatsapp-float svg {
        width: 22px;
        height: 22px;
    }
}

@media (max-width: 480px) {
    .hero__title {
        font-size: var(--fs-xl);
    }

    .section-title {
        font-size: var(--fs-xl);
    }

    .logo__img {
        height: 44px;
    }

    .about__stat-number {
        font-size: var(--fs-lg);
    }

    .about__stat {
        padding: var(--space-3) var(--space-2);
    }

    .about__highlights li {
        padding: var(--space-3) var(--space-4);
    }

    .hero__content {
        padding-left: var(--space-4);
        padding-right: var(--space-4);
    }
}

/* ── ACCESSIBILITY ──────────────────────────────────────────────── */

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }

    .reveal {
        opacity: 1;
        transform: none;
    }

    .whatsapp-float {
        animation: none;
    }
}