/* style.css */
:root {
    --color-white: #FFFFFF;
    --color-black: #000000;
    --color-blue: #819AFF;
    --color-red: #EE0505;
    --color-light-gray: #D9D9D9;
    --color-forge-green: rgb(60, 88, 82);
    --color-academy-purple: #6B4C9A;
    --color-rental-orange: #FF6B35;

    --font-heading: 'Basement Grotesque', 'Arial Black', 'Helvetica Neue', sans-serif;
    --font-body: 'Gilroy', 'Segoe UI', 'Helvetica Neue', Arial, sans-serif;

    --header-height: 72px;
    --container-max: 1200px;
    --container-padding: 40px;
}

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

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    padding: 0;
    font-family: var(--font-body);
    font-size: 16px;
    line-height: 1.6;
    color: var(--color-black);
    background-color: var(--color-white);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

ul {
    list-style: none;
    margin: 0;
    padding: 0;
}

a {
    text-decoration: none;
    color: inherit;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

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

address {
    font-style: normal;
}

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

/* ======================== HEADER ======================== */
#header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: var(--header-height);
    background-color: rgba(0, 0, 0, 0.95);
    z-index: 1000;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

#header.scrolled {
    background-color: var(--color-black);
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
}

.header__nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--container-padding);
    height: 100%;
}

.header__logo {
    font-family: var(--font-heading);
    font-size: 24px;
    font-weight: 700;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    color: var(--color-white);
}

.header__menu {
    display: flex;
    gap: 40px;
}

.header__menu a {
    font-family: var(--font-body);
    font-size: 14px;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--color-white);
    position: relative;
}

.header__menu a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--color-white);
    transition: width 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.header__menu a:hover::after {
    width: 100%;
}

.header__burger {
    display: none;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 5px;
    width: 40px;
    height: 40px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0;
}

.header__burger span {
    display: block;
    width: 24px;
    height: 2px;
    background-color: var(--color-white);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.header__burger.active span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}

.header__burger.active span:nth-child(2) {
    opacity: 0;
}

.header__burger.active span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

/* ======================== HERO ======================== */
.hero {
    position: relative;
    background-color: var(--color-black);
    color: var(--color-white);
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: var(--header-height);
    overflow: hidden;
}

#heroCanvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
    pointer-events: none;
}

.hero__content {
    position: relative;
    z-index: 2;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 80px var(--container-padding);
    width: 100%;
}

.hero__title {
    font-family: var(--font-heading);
    font-size: 56px;
    font-weight: 700;
    line-height: 1.15;
    text-transform: uppercase;
    margin: 0 0 32px 0;
    max-width: 900px;
    animation: fadeInUp 1s ease-out;
}

.hero__subtitle {
    font-family: var(--font-body);
    font-size: 18px;
    line-height: 1.6;
    margin: 0 0 48px 0;
    max-width: 600px;
    color: rgba(255, 255, 255, 0.7);
    animation: fadeInUp 1s ease-out 0.2s backwards;
}

.hero__cta {
    display: inline-block;
    padding: 16px 40px;
    background-color: var(--color-white);
    color: var(--color-black);
    font-family: var(--font-body);
    font-size: 14px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    border-radius: 2px;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    animation: fadeInUp 1s ease-out 0.4s backwards;
}

.hero__cta:hover {
    background-color: transparent;
    color: var(--color-white);
    border: 2px solid var(--color-white);
    padding: 14px 38px;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ======================== PROJECTS ======================== */
.projects {
    padding: 120px 0;
    background-color: var(--color-white);
}

.section__title {
    font-family: var(--font-heading);
    font-size: 36px;
    font-weight: 700;
    text-transform: uppercase;
    margin: 0 0 60px 0;
    letter-spacing: 0.02em;
}

.projects__grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
}

.project-card {
    display: flex;
    flex-direction: column;
    padding: 48px;
    background-color: var(--color-black);
    border-radius: 2px;
    transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    min-height: 320px;
    overflow: hidden;
    cursor: pointer;
}

.project-card__bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    transition: opacity 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 1;
}

.project-card__content {
    position: relative;
    z-index: 2;
    display: flex;
    flex-direction: column;
    height: 100%;
}

.project-card__number {
    font-family: var(--font-heading);
    font-size: 72px;
    font-weight: 700;
    color: rgba(255, 255, 255, 0.1);
    line-height: 1;
    margin-bottom: 24px;
    transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.project-card__title {
    font-family: var(--font-heading);
    font-size: 24px;
    font-weight: 700;
    text-transform: uppercase;
    margin: 0 0 16px 0;
    color: var(--color-white);
    transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.project-card__desc {
    font-family: var(--font-body);
    font-size: 15px;
    line-height: 1.6;
    color: rgba(255, 255, 255, 0.6);
    margin: 0;
    flex-grow: 1;
    transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.project-card__link {
    font-family: var(--font-body);
    font-size: 14px;
    font-weight: 500;
    color: var(--color-white);
    margin-top: 24px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    opacity: 0.7;
}

/* Events - White, Blue, Red */
.project-card--events .project-card__bg {
    background: radial-gradient(circle at 30% 30%, 
        #FFFFFF 0%, 
        #C6CFF4 30%, 
        #819AFF 60%, 
        #FF8787 85%, 
        #EE0505 100%);
}

.project-card--events:hover .project-card__bg {
    opacity: 1;
}

.project-card--events:hover {
    transform: translateY(-8px);
}

.project-card--events:hover .project-card__number {
    color: rgba(0, 0, 0, 0.2);
}

.project-card--events:hover .project-card__title,
.project-card--events:hover .project-card__desc,
.project-card--events:hover .project-card__link {
    color: var(--color-black);
}

.project-card--events:hover .project-card__link {
    opacity: 1;
}

/* Forge - Dark Green and Black */
.project-card--forge .project-card__bg {
    background: linear-gradient(135deg, 
        var(--color-forge-green) 0%, 
        var(--color-black) 100%);
}

.project-card--forge:hover .project-card__bg {
    opacity: 1;
}

.project-card--forge:hover {
    transform: translateY(-8px);
}

.project-card--forge:hover .project-card__number {
    color: rgba(255, 255, 255, 0.3);
}

.project-card--forge:hover .project-card__link {
    opacity: 1;
}

/* Academy - Purple gradient */
.project-card--academy .project-card__bg {
    background: linear-gradient(135deg, 
        var(--color-academy-purple) 0%, 
        #9B7BC0 50%, 
        var(--color-white) 100%);
}

.project-card--academy:hover .project-card__bg {
    opacity: 1;
}

.project-card--academy:hover {
    transform: translateY(-8px);
}

.project-card--academy:hover .project-card__number {
    color: rgba(0, 0, 0, 0.2);
}

.project-card--academy:hover .project-card__title,
.project-card--academy:hover .project-card__desc,
.project-card--academy:hover .project-card__link {
    color: var(--color-black);
}

.project-card--academy:hover .project-card__link {
    opacity: 1;
}

/* Rental - Orange gradient */
.project-card--rental .project-card__bg {
    background: linear-gradient(135deg, 
        var(--color-rental-orange) 0%, 
        #FF8C42 50%, 
        var(--color-black) 100%);
}

.project-card--rental:hover .project-card__bg {
    opacity: 1;
}

.project-card--rental:hover {
    transform: translateY(-8px);
}

.project-card--rental:hover .project-card__number {
    color: rgba(255, 255, 255, 0.3);
}

.project-card--rental:hover .project-card__link {
    opacity: 1;
}

/* ======================== ABOUT ======================== */
.about {
    padding: 120px 0;
    background-color: #FAFAFA;
    border-top: 1px solid var(--color-light-gray);
}

.about__content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: start;
}

.about__text {
    font-family: var(--font-body);
    font-size: 17px;
    line-height: 1.7;
    margin: 0;
    color: rgba(0, 0, 0, 0.8);
}

.about__stats {
    display: flex;
    flex-direction: column;
    gap: 32px;
}

.stat {
    margin: 0;
    padding: 0;
    border-left: 3px solid var(--color-black);
    padding-left: 24px;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.stat:hover {
    border-left-width: 6px;
    padding-left: 28px;
}

.stat__number {
    font-family: var(--font-heading);
    font-size: 42px;
    font-weight: 700;
    display: block;
    margin-bottom: 8px;
}

.stat__label {
    font-family: var(--font-body);
    font-size: 14px;
    color: rgba(0, 0, 0, 0.6);
    line-height: 1.5;
}

/* ======================== CONTACT ======================== */
.contact {
    padding: 120px 0;
    background-color: var(--color-white);
    border-top: 1px solid var(--color-light-gray);
}

.contact__subtitle {
    font-family: var(--font-body);
    font-size: 17px;
    color: rgba(0, 0, 0, 0.6);
    margin: 0 0 48px 0;
}

.contact__form {
    max-width: 600px;
}

.form-group {
    margin-bottom: 24px;
    position: relative;
}

.form-group label {
    display: block;
    font-family: var(--font-body);
    font-size: 13px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    margin-bottom: 8px;
    color: rgba(0, 0, 0, 0.7);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 14px 16px;
    font-family: var(--font-body);
    font-size: 16px;
    border: 1px solid var(--color-light-gray);
    border-radius: 2px;
    background-color: var(--color-white);
    color: var(--color-black);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    outline: none;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    border-color: var(--color-black);
    border-width: 2px;
    padding: 13px 15px;
}

.form-group textarea {
    resize: vertical;
    min-height: 100px;
}

.form-group select {
    appearance: none;
    -webkit-appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath fill='%23000' d='M6 8L0 0h12z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 16px center;
    padding-right: 40px;
}

.form-error {
    display: block;
    font-family: var(--font-body);
    font-size: 13px;
    color: var(--color-red);
    margin-top: 6px;
    min-height: 18px;
}

.form-group input.error,
.form-group select.error {
    border-color: var(--color-red);
}

.form__submit {
    display: inline-block;
    padding: 16px 48px;
    background-color: var(--color-black);
    color: var(--color-white);
    font-family: var(--font-body);
    font-size: 14px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    border: 2px solid var(--color-black);
    border-radius: 2px;
    cursor: pointer;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.form__submit:hover {
    background-color: var(--color-white);
    color: var(--color-black);
}

.form__submit:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.form-success {
    font-family: var(--font-body);
    font-size: 17px;
    line-height: 1.6;
    color: var(--color-black);
    padding: 40px 0;
    max-width: 500px;
}

/* ======================== FOOTER ======================== */
.footer {
    background-color: var(--color-black);
    color: var(--color-white);
    padding: 80px 0 40px 0;
}

.footer__grid {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 60px;
}

.footer__logo {
    font-family: var(--font-heading);
    font-size: 20px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    display: block;
    margin-bottom: 12px;
}

.footer__tagline {
    font-family: var(--font-body);
    font-size: 14px;
    color: rgba(255, 255, 255, 0.5);
    margin: 0;
}

.footer__links {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer__links a {
    font-family: var(--font-body);
    font-size: 14px;
    color: rgba(255, 255, 255, 0.7);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.footer__links a:hover {
    color: var(--color-white);
}

.footer__contacts {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer__contacts a {
    font-family: var(--font-body);
    font-size: 14px;
    color: rgba(255, 255, 255, 0.7);
}

.footer__contacts a:hover {
    color: var(--color-white);
}

.footer__bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 24px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    font-family: var(--font-body);
    font-size: 13px;
    color: rgba(255, 255, 255, 0.4);
}

.footer__bottom a {
    color: rgba(255, 255, 255, 0.4);
}

.footer__bottom a:hover {
    color: var(--color-white);
}

/* ======================== RESPONSIVE: TABLET ======================== */
@media (max-width: 1024px) {
    :root {
        --container-padding: 32px;
    }

    .hero__title {
        font-size: 44px;
    }

    .hero__subtitle {
        font-size: 16px;
    }

    .projects {
        padding: 80px 0;
    }

    .section__title {
        font-size: 30px;
        margin-bottom: 40px;
    }

    .project-card {
        padding: 36px;
        min-height: 280px;
    }

    .project-card__number {
        font-size: 56px;
    }

    .about {
        padding: 80px 0;
    }

    .about__content {
        gap: 48px;
    }

    .contact {
        padding: 80px 0;
    }

    .footer {
        padding: 60px 0 32px 0;
    }
}

/* ======================== RESPONSIVE: MOBILE ======================== */
@media (max-width: 768px) {
    :root {
        --container-padding: 20px;
        --header-height: 60px;
    }

    .header__burger {
        display: flex;
    }

    .header__menu {
        position: fixed;
        top: var(--header-height);
        left: 0;
        width: 100%;
        flex-direction: column;
        gap: 0;
        background-color: var(--color-black);
        border-bottom: 1px solid rgba(255, 255, 255, 0.2);
        padding: 0;
        max-height: 0;
        overflow: hidden;
        transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    }

    .header__menu.open {
        max-height: 300px;
    }

    .header__menu li {
        border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    }

    .header__menu a {
        display: block;
        padding: 20px var(--container-padding);
        font-size: 15px;
    }

    .hero {
        min-height: auto;
        padding-top: calc(var(--header-height) + 40px);
        padding-bottom: 60px;
    }

    .hero__content {
        padding: 40px var(--container-padding);
    }

    .hero__title {
        font-size: 32px;
        margin-bottom: 20px;
    }

    .hero__subtitle {
        font-size: 15px;
        margin-bottom: 32px;
    }

    .hero__cta {
        padding: 14px 32px;
        font-size: 13px;
    }

    .projects {
        padding: 60px 0;
    }

    .section__title {
        font-size: 26px;
        margin-bottom: 32px;
    }

    .projects__grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }

    .project-card {
        padding: 32px;
        min-height: auto;
    }

    .project-card__number {
        font-size: 48px;
        margin-bottom: 16px;
    }

    .project-card__title {
        font-size: 20px;
    }

    .project-card__desc {
        font-size: 14px;
    }

    .about {
        padding: 60px 0;
    }

    .about__content {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .stat__number {
        font-size: 32px;
    }

    .contact {
        padding: 60px 0;
    }

    .contact__subtitle {
        font-size: 15px;
        margin-bottom: 32px;
    }

    .footer {
        padding: 48px 0 24px 0;
    }

    .footer__grid {
        grid-template-columns: 1fr;
        gap: 32px;
        margin-bottom: 40px;
    }

    .footer__bottom {
        flex-direction: column;
        gap: 12px;
        text-align: center;
    }
}