/* ============================================
   WAB. — WeAreBrothers Studio
   ============================================ */

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

/* ── Variables ── */
:root {
    --black: #000000;
    --white: #ffffff;
    --accent: #FF3C78;
    --muted: rgba(0, 0, 0, 0.55);
    --border: rgba(0, 0, 0, 0.1);
    --font-display: 'Manrope', sans-serif;
    --font-body: 'Helvetica Neue', Helvetica, sans-serif;
    --ease: cubic-bezier(0.16, 1, 0.3, 1);
    --vh: 1vh;
}

::selection {
    background: var(--accent);
    color: var(--white);
}

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overscroll-behavior-y: none;
    -webkit-text-size-adjust: 100%;
    text-size-adjust: 100%;
}

body {
    font-family: var(--font-body);
    background: var(--white);
    color: var(--black);
    overflow-x: hidden;
    line-height: 1.5;
}

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

button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    background: none;
    color: inherit;
}

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

/* ── Layout ── */
.container {
    width: 100%;
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 clamp(24px, 4vw, 60px);
}

.section {
    padding: clamp(40px, 6vw, 80px) 0;
}

/* ============================================
   HEADER
   ============================================ */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 24px clamp(24px, 4vw, 60px);
    transition: transform 0.5s var(--ease);
}

.header.hide-up {
    transform: translateY(-100%);
}

.header-logo {
    font-family: var(--font-display);
    font-size: 22px;
    font-weight: 800;
    letter-spacing: -0.02em;
    z-index: 110;
    transition: color 0.3s ease;
}

.header.hero-visible .header-logo {
    color: var(--white);
}

.header.nav-open .header-logo {
    color: var(--black);
}

.header.hero-visible .menu-line {
    background: var(--white);
    box-shadow: 0 1px 4px rgba(0, 0, 0, 0.2);
}

.header-menu-btn {
    z-index: 110;
    width: 32px;
    height: 20px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    padding: 0;
}

.menu-line {
    display: block;
    width: 100%;
    height: 2px;
    background: var(--black);
    transition: transform 0.4s var(--ease), background 0.3s ease;
    transform-origin: center;
}

.header-menu-btn.active .menu-line {
    background: var(--black);
}

.header-menu-btn.active .menu-line:first-child {
    transform: translateY(9px) rotate(45deg);
}

.header-menu-btn.active .menu-line:last-child {
    transform: translateY(-9px) rotate(-45deg);
}

/* ============================================
   NAV OVERLAY
   ============================================ */
.nav-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 99;
    background: var(--white);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.5s var(--ease);
}

.nav-overlay.open {
    opacity: 1;
    pointer-events: auto;
}

.nav-content {
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 48px;
}

.nav-links {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.nav-link {
    font-family: var(--font-display);
    font-size: clamp(3rem, 8vw, 7rem);
    font-weight: 800;
    letter-spacing: -0.03em;
    line-height: 1.05;
    transition: color 0.3s ease, transform 0.3s var(--ease);
    display: block;
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 3px;
    background: var(--accent);
    transition: width 0.4s var(--ease);
}

.nav-link:hover {
    color: var(--accent);
    transform: translateX(12px);
}

.nav-link:hover::after {
    width: 100%;
}

.nav-email-btn {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    margin-top: 40px;
    padding: 18px 36px;
    background: var(--black);
    color: var(--white);
    font-family: var(--font-display);
    font-size: 1rem;
    font-weight: 700;
    letter-spacing: -0.01em;
    border-radius: 4px;
    transition: background 0.5s var(--ease), transform 0.5s var(--ease), box-shadow 0.5s var(--ease);
}

.nav-email-btn:hover {
    background: var(--accent);
    transform: translateY(-3px);
    box-shadow: 0 20px 40px -10px rgba(255, 60, 120, 0.3);
}

.nav-email-btn svg {
    transition: transform 0.4s var(--ease);
}

.nav-email-btn:hover svg {
    transform: translate(3px, -3px);
}

/* ============================================
   HERO
   ============================================ */
.hero-wrapper {
    position: relative;
    z-index: 1;
    height: 100vh;
    height: calc(var(--vh, 1vh) * 100);
    height: 100svh;
}

.hero {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    height: calc(var(--vh, 1vh) * 100);
    height: 100svh;
    display: flex;
    align-items: flex-end;
    justify-content: flex-start;
    overflow: hidden;
    background: #F7609B;
    z-index: 1;
}

/* ── Lava lamp ── */
.lava {
    position: absolute;
    inset: -20%;
    filter: blur(60px);
    z-index: 0;
}

.lava-blob {
    position: absolute;
    border-radius: 50%;
    will-change: transform;
}

.lava-blob--1 {
    width: 55%;
    height: 55%;
    top: 10%;
    left: -5%;
    background: #FFB0D0;
    animation: lava1 12s ease-in-out infinite alternate;
}

.lava-blob--2 {
    width: 50%;
    height: 50%;
    bottom: 5%;
    right: -5%;
    background: #C2185B;
    animation: lava2 14s ease-in-out infinite alternate;
}

.lava-blob--3 {
    width: 45%;
    height: 45%;
    top: 30%;
    left: 30%;
    background: #FF1F6E;
    animation: lava3 16s ease-in-out infinite alternate;
}

@keyframes lava1 {
    0%   { transform: translate(0, 0) scale(1); }
    33%  { transform: translate(30%, 20%) scale(1.15); }
    66%  { transform: translate(10%, 40%) scale(0.9); }
    100% { transform: translate(40%, 10%) scale(1.1); }
}

@keyframes lava2 {
    0%   { transform: translate(0, 0) scale(1); }
    33%  { transform: translate(-25%, -20%) scale(1.2); }
    66%  { transform: translate(-10%, -35%) scale(0.85); }
    100% { transform: translate(-30%, -10%) scale(1.1); }
}

@keyframes lava3 {
    0%   { transform: translate(0, 0) scale(1); }
    33%  { transform: translate(20%, -25%) scale(1.1); }
    66%  { transform: translate(-20%, 15%) scale(1.2); }
    100% { transform: translate(-10%, -20%) scale(0.9); }
}

@media (max-width: 768px) {
    .lava {
        filter: blur(40px);
    }

    .lava-blob {
        will-change: auto;
    }

    .lava-blob--1 { animation-duration: 16s; }
    .lava-blob--2 { animation-duration: 18s; }
    .lava-blob--3 { animation-duration: 20s; }
}

.content-body {
    position: relative;
    z-index: 10;
    background: var(--white);
    transform: translate3d(0, 0, 0);
    backface-visibility: hidden;
    min-height: 100vh;
    isolation: isolate;
}

.hero-inner {
    padding: 0 clamp(24px, 4vw, 60px) clamp(40px, 6vw, 80px);
}

.hero-title {
    font-family: var(--font-display);
    font-size: clamp(3.2rem, 10vw, 10rem);
    font-weight: 800;
    letter-spacing: -0.04em;
    line-height: 0.95;
    color: var(--white);
}

.hero-line {
    display: block;
    overflow: hidden;
}

.hero-word,
.hero-dot {
    display: inline-block;
    transform: translateY(120%);
    opacity: 0;
}

.hero-dot {
    color: var(--white);
}

.hero-scroll-hint {
    position: absolute;
    bottom: 40px;
    right: clamp(24px, 4vw, 60px);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
}

.hero-scroll-hint span {
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: rgba(255, 255, 255, 0.85);
}

.scroll-line {
    width: 1px;
    height: 48px;
    background: rgba(255, 255, 255, 0.2);
    position: relative;
    overflow: hidden;
}

.scroll-line::after {
    content: '';
    position: absolute;
    top: -40%;
    left: 0;
    width: 100%;
    height: 40%;
    background: linear-gradient(to bottom, transparent, var(--white), transparent);
    animation: scrollPulse 1.8s cubic-bezier(0.4, 0, 0.2, 1) infinite;
}

@keyframes scrollPulse {
    0%   { top: -40%; opacity: 0; }
    10%  { opacity: 1; }
    90%  { opacity: 1; }
    100% { top: 100%; opacity: 0; }
}

/* ============================================
   INTRO / ABOUT
   ============================================ */
.intro {
    border-bottom: 1px solid var(--border);
}

.intro-text {
    font-family: var(--font-display);
    font-size: clamp(1.4rem, 3.5vw, 2.8rem);
    font-weight: 600;
    line-height: 1.35;
    letter-spacing: -0.02em;
    max-width: 1000px;
    color: var(--black);
}

.intro-text + .intro-text {
    margin-top: 32px;
    color: var(--muted);
}

/* ============================================
   PROJECTS
   ============================================ */
.section-title {
    font-family: var(--font-display);
    font-size: clamp(1.5rem, 3vw, 2.5rem);
    font-weight: 800;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    color: var(--black);
    margin-bottom: clamp(24px, 3vw, 40px);
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: clamp(24px, 3vw, 40px);
}

.project-card {
    display: block;
    color: inherit;
    border-bottom: 1px solid var(--border);
    padding-bottom: clamp(24px, 3vw, 40px);
    transition: transform 0.5s var(--ease);
}

.project-card:hover {
    transform: translateY(-4px);
}

.project-image-container {
    width: 100%;
    position: relative;
    padding-top: 62.5%;
    overflow: hidden;
    border-radius: 6px;
    margin-bottom: clamp(16px, 2vw, 24px);
}

@supports (aspect-ratio: 16 / 10) {
    .project-image-container {
        padding-top: 0;
        aspect-ratio: 16 / 10;
    }
}

.project-image {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    transition: transform 0.8s var(--ease);
}

@supports (aspect-ratio: 16 / 10) {
    .project-image {
        position: relative;
        top: auto;
        left: auto;
    }
}

.project-card:hover .project-image {
    transform: scale(1.05);
}

.project-info-top {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    margin-bottom: 8px;
}

.project-name {
    font-family: var(--font-display);
    font-size: clamp(1.1rem, 2vw, 1.6rem);
    font-weight: 700;
    letter-spacing: -0.01em;
    text-transform: uppercase;
}

.project-index {
    font-size: 13px;
    font-weight: 600;
    color: var(--accent);
    letter-spacing: 0.05em;
}

.project-desc {
    font-size: clamp(0.85rem, 1.2vw, 1rem);
    color: var(--muted);
    line-height: 1.6;
    max-width: 520px;
}

/* ============================================
   SERVICES
   ============================================ */
.services {
    position: relative;
    z-index: 10;
    background: var(--white);
    padding-bottom: 0 !important;
}

.services .section-title {
    margin-bottom: clamp(24px, 3vw, 40px);
}

.services-list {
    display: flex;
    flex-direction: column;
    width: 100%;
}

.service-row {
    width: 100vw;
    margin-left: calc(50% - 50vw);
    background-color: var(--white);
    position: relative;
    z-index: 2;
    cursor: pointer;
    transition: background-color 0.4s ease, opacity 0.5s var(--ease);
    border-bottom: 1px solid var(--border);
    overflow: hidden;
    -webkit-tap-highlight-color: transparent;
}

.service-row:first-child {
    border-top: 1px solid var(--border);
}

.service-row:last-child {
    border-bottom: none;
}

.service-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 48px;
    padding: clamp(24px, 3.5vw, 48px) clamp(24px, 4vw, 60px);
    width: 100%;
}

.service-row::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: -1;
    opacity: 0;
    transition: opacity 0.4s ease;
    background:
        radial-gradient(ellipse 60% 80% at 15% 50%, #FF8ABF 0%, transparent 70%),
        radial-gradient(ellipse 50% 70% at 75% 30%, #FF1493 0%, transparent 70%),
        radial-gradient(ellipse 55% 65% at 60% 80%, #FF0066 0%, transparent 70%),
        radial-gradient(ellipse 50% 60% at 35% 20%, #FF3D85 0%, transparent 70%);
    background-color: #F7609B;
    background-size: 200% 200%;
    animation: serviceGradientShift 8s ease-in-out infinite;
}

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

.service-row:hover::before {
    opacity: 1;
}

.services-list:hover .service-row:not(:hover) {
    opacity: 0.3;
}

.service-name {
    font-family: var(--font-display);
    font-size: clamp(2.5rem, 9vw, 8rem);
    font-weight: 800;
    letter-spacing: -0.05em;
    line-height: 0.9;
    text-transform: uppercase;
    white-space: nowrap;
    color: var(--black);
    flex-shrink: 0;
    transition: color 0.4s ease;
}

.service-row:hover .service-name {
    color: var(--white);
    position: relative;
    z-index: 1;
}

.service-desc {
    font-size: clamp(1rem, 1.2vw, 1.25rem);
    color: rgba(0, 0, 0, 0.6);
    line-height: 1.6;
    max-width: 380px;
    text-align: left;
    flex-shrink: 0;
    transition: color 0.4s ease;
}

.service-row:hover .service-desc {
    color: var(--white);
    position: relative;
    z-index: 1;
}

/* ============================================
   CONTACT
   ============================================ */
.contact {
    border-top: 1px solid var(--border);
    padding-top: clamp(60px, 8vw, 100px);
}

.contact-subtitle {
    font-family: var(--font-display);
    font-size: clamp(1.8rem, 4vw, 3.6rem);
    font-weight: 800;
    letter-spacing: -0.03em;
    margin-bottom: clamp(48px, 6vw, 80px);
}

.contact-actions {
    margin-top: 24px;
}

.email-btn {
    display: inline-flex;
    align-items: center;
    gap: 16px;
    background: var(--black);
    color: var(--white);
    padding: 24px 48px;
    font-family: var(--font-display);
    font-size: clamp(1.2rem, 2vw, 1.5rem);
    font-weight: 700;
    letter-spacing: -0.01em;
    transition: background 0.5s var(--ease), transform 0.5s var(--ease), box-shadow 0.5s var(--ease);
    border: 1px solid transparent;
    border-radius: 4px;
    -webkit-tap-highlight-color: transparent;
    -webkit-appearance: none;
    appearance: none;
}

.email-btn:hover {
    background: var(--accent);
    transform: translateY(-4px);
    box-shadow: 0 24px 48px -12px rgba(255, 60, 120, 0.35);
    border-color: var(--accent);
}

.email-btn svg {
    transition: transform 0.4s var(--ease);
}

.email-btn:hover svg {
    transform: translate(4px, -4px);
}

/* ============================================
   FOOTER
   ============================================ */
.footer {
    position: relative;
    padding: clamp(60px, 8vw, 120px) 0 clamp(32px, 4vw, 60px);
    border-top: 1px solid var(--border);
    overflow: hidden;
}

.footer-watermark {
    position: absolute;
    bottom: -15%;
    left: -2%;
    font-family: var(--font-display);
    font-size: clamp(12rem, 28vw, 28rem);
    font-weight: 800;
    letter-spacing: -0.05em;
    color: rgba(0, 0, 0, 0.03);
    pointer-events: none;
    user-select: none;
    line-height: 0.85;
    white-space: nowrap;
}

.footer-content {
    position: relative;
    z-index: 1;
}

.footer-top {
    display: flex;
    justify-content: space-between;
    gap: 48px;
    margin-bottom: clamp(48px, 6vw, 80px);
}

.footer-status {
    font-family: var(--font-display);
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--accent);
    margin-bottom: 8px;
}

.footer-copy {
    font-size: 13px;
    font-weight: 600;
    color: var(--muted);
}

.footer-links {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.footer-link {
    font-family: var(--font-display);
    font-size: 14px;
    font-weight: 600;
    color: var(--muted);
    transition: color 0.4s var(--ease);
}

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

.footer-tagline {
    font-size: clamp(0.85rem, 1.2vw, 1rem);
    color: var(--muted);
    font-weight: 500;
}

/* ============================================
   REVEAL ANIMATION
   ============================================ */
.reveal {
    opacity: 0;
    transform: translateY(40px);
}

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 768px) {
    .projects-grid {
        grid-template-columns: 1fr;
    }

    .service-row {
        width: 100%;
        margin-left: 0;
    }

    .service-inner {
        flex-direction: column;
        align-items: flex-start;
        gap: 12px;
    }

    .service-name {
        font-size: clamp(2rem, 9vw, 4.5rem);
        white-space: normal;
    }

    .service-desc {
        max-width: 100%;
    }

    .footer-top {
        flex-direction: column;
        gap: 32px;
    }

    .footer-links {
        flex-direction: row;
        flex-wrap: wrap;
        gap: 16px;
    }

    .nav-link {
        font-size: clamp(2.5rem, 12vw, 4rem);
    }

    .email-btn {
        padding: 16px 24px;
        font-size: 1rem;
        width: 100%;
        justify-content: center;
        text-align: center;
    }

    .email-btn span {
        white-space: nowrap;
        overflow: hidden;
        text-overflow: ellipsis;
    }

    .nav-email-btn {
        padding: 14px 28px;
        font-size: 0.9rem;
    }
}

@media (max-width: 390px) {
    .email-btn span {
        font-size: 0.85rem;
        white-space: normal;
        overflow: visible;
    }
}

/* ── Touch devices ── */
@media (hover: none) {
    .nav-link:hover {
        color: inherit;
        transform: none;
    }

    .nav-link:hover::after {
        width: 0;
    }

    .project-card:hover {
        transform: none;
    }

    .project-card:hover .project-image {
        transform: none;
    }

    .email-btn:hover {
        background: var(--black);
        color: var(--white);
        transform: none;
        box-shadow: none;
        border-color: transparent;
    }

    .email-btn:hover svg {
        transform: none;
    }

    .nav-email-btn:hover {
        background: var(--black);
        transform: none;
        box-shadow: none;
    }

    .services-list:hover .service-row:not(:hover) {
        opacity: 1;
    }

    .service-row::before {
        animation: none;
    }
}

/* ── Reduced motion ── */
@media (prefers-reduced-motion: reduce) {
    .service-row::before {
        animation: none;
    }

    html {
        scroll-behavior: auto;
    }
}