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

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-rendering: optimizeLegibility;
}

body {
    font-family: var(--gr-font-body);
    font-size: var(--gr-fs-body);
    line-height: 1.6;
    color: var(--gr-text);
    background-color: var(--gr-dark);
    overflow-x: hidden;
    font-feature-settings: 'cv02', 'cv03', 'cv04', 'cv11';
}

body.modal-open {
    overflow: hidden;
}

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

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

ul, ol {
    list-style: none;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--gr-font-heading);
    font-weight: 600;
    line-height: 1.1;
    letter-spacing: var(--gr-tracking-tight);
    color: var(--gr-white);
}

h1 { font-size: var(--gr-fs-h1); letter-spacing: var(--gr-tracking-tighter); }
h2 { font-size: var(--gr-fs-h2); letter-spacing: var(--gr-tracking-tighter); }
h3 { font-size: var(--gr-fs-h3); font-weight: 500; }

p {
    margin-bottom: 1em;
}

p:last-child {
    margin-bottom: 0;
}

::selection {
    background: var(--gr-orange);
    color: #fff;
}

/* Container */
.gr-container {
    width: 100%;
    max-width: var(--gr-container-max);
    margin: 0 auto;
    padding: 0 var(--gr-container-px);
}

/* Section */
.gr-section {
    padding: var(--gr-section-py) 0;
}

.gr-section--gray {
    background-color: var(--gr-bg-elevated);
}

.gr-section--dark {
    background-color: var(--gr-bg-subtle);
    color: var(--gr-white);
}

/* Section Header */
.gr-section__header {
    text-align: center;
    max-width: 640px;
    margin: 0 auto clamp(48px, 6vw, 72px);
}

.gr-section__header h2 {
    margin-bottom: 16px;
}

.gr-section__header p {
    color: var(--gr-text-muted);
    font-size: 1.0625rem;
    line-height: 1.55;
}

/* Buttons — flat, hairline, no shadows */
.gr-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 0 16px;
    height: 36px;
    border-radius: var(--gr-radius-sm);
    font-family: var(--gr-font-body);
    font-size: var(--gr-fs-small);
    font-weight: 500;
    cursor: pointer;
    border: 1px solid transparent;
    transition: background var(--gr-transition), color var(--gr-transition), border-color var(--gr-transition);
    white-space: nowrap;
    text-decoration: none;
    letter-spacing: -0.01em;
}

.gr-btn--primary {
    background-color: var(--gr-orange);
    color: #fff;
    border-color: var(--gr-orange);
}

.gr-btn--primary:hover {
    background-color: var(--gr-orange-hover);
    border-color: var(--gr-orange-hover);
}

.gr-btn--outline {
    background-color: transparent;
    color: var(--gr-white);
    border-color: var(--gr-border-strong);
}

.gr-btn--outline:hover {
    background-color: var(--gr-bg-elevated);
    border-color: var(--gr-text-muted);
}

.gr-btn--ghost {
    background: transparent;
    color: var(--gr-text);
    border-color: transparent;
}

.gr-btn--ghost:hover {
    background: var(--gr-bg-elevated);
    color: var(--gr-white);
}

.gr-btn--white {
    background-color: var(--gr-white);
    color: var(--gr-dark);
    border-color: var(--gr-white);
}

.gr-btn--white:hover {
    background-color: #e5e5e5;
    border-color: #e5e5e5;
}

.gr-btn--lg {
    height: 44px;
    padding: 0 22px;
    font-size: var(--gr-fs-body);
}

.gr-btn--sm {
    height: 32px;
    padding: 0 12px;
    font-size: var(--gr-fs-xs);
}

/* Cards — hairline, no shadow, subtle hover */
.gr-card {
    background: var(--gr-surface);
    border: 1px solid var(--gr-border);
    border-radius: var(--gr-radius);
    padding: 28px;
    transition: border-color var(--gr-transition), background var(--gr-transition);
}

.gr-card:hover {
    border-color: var(--gr-border-strong);
    background: var(--gr-surface-hover);
}

.gr-card__icon {
    width: 36px;
    height: 36px;
    margin-bottom: 20px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: var(--gr-orange);
    font-size: 20px;
}

.gr-card__icon img {
    width: 100%;
    height: 100%;
}

.gr-card__title {
    margin-bottom: 8px;
    font-size: var(--gr-fs-h3);
    color: var(--gr-white);
    font-weight: 600;
    letter-spacing: var(--gr-tracking-tight);
}

.gr-card__text {
    color: var(--gr-text-muted);
    font-size: var(--gr-fs-small);
    line-height: 1.55;
}

/* Badge / Label */
.gr-label {
    display: inline-block;
    padding: 4px 10px;
    border-radius: var(--gr-radius-full);
    background: transparent;
    color: var(--gr-text-muted);
    font-size: var(--gr-fs-xs);
    font-weight: 500;
    letter-spacing: 0;
    border: 1px solid var(--gr-border);
}

/* Animations */
[data-animate] {
    opacity: 0;
    transform: translateY(16px);
    transition: opacity 0.5s cubic-bezier(0.4, 0, 0.2, 1), transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

[data-animate].gr-animated {
    opacity: 1;
    transform: translateY(0);
}

/* Utility */
.gr-text-center { text-align: center; }
.gr-text-muted { color: var(--gr-text-muted); }
.gr-mt-auto { margin-top: auto; }

/* Modal */
.gr-modal {
    display: none;
    position: fixed;
    inset: 0;
    z-index: 2000;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(8px);
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.gr-modal--open { display: flex; }

.gr-modal__content {
    background: var(--gr-bg-elevated);
    border: 1px solid var(--gr-border);
    border-radius: var(--gr-radius);
    max-width: 420px;
    width: 100%;
    padding: 40px;
    position: relative;
    animation: grModalIn 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

.gr-modal__close {
    position: absolute;
    top: 12px;
    right: 12px;
    width: 28px;
    height: 28px;
    border: none;
    background: transparent;
    border-radius: var(--gr-radius-xs);
    font-size: 18px;
    color: var(--gr-text-muted);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background var(--gr-transition), color var(--gr-transition);
}

.gr-modal__close:hover {
    background: var(--gr-bg-subtle);
    color: var(--gr-white);
}

.gr-modal__success { text-align: center; padding: 20px 0; }

.gr-modal__success-icon {
    width: 56px;
    height: 56px;
    background: var(--gr-orange-light);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 16px;
    font-size: 24px;
    color: var(--gr-orange);
}

.gr-modal__form input {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid var(--gr-border);
    border-radius: var(--gr-radius-sm);
    font-size: 14px;
    font-family: var(--gr-font-body);
    background: var(--gr-bg-subtle);
    color: var(--gr-white);
    outline: none;
    transition: border-color var(--gr-transition);
}

.gr-modal__form input:focus {
    border-color: var(--gr-orange);
}

.gr-modal__form input::placeholder {
    color: var(--gr-text-faint);
}

.gr-modal__form .gr-form-group {
    margin-bottom: 12px;
}

@keyframes grModalIn {
    from { opacity: 0; transform: scale(0.97); }
    to { opacity: 1; transform: scale(1); }
}