/* ============================================
   Premium Hamburger Menu - React Style
   ============================================ */

/* CSS Variables */
:root {
    --phm-bg: #faf8f5;
    --phm-text: #1a1a1a;
    --phm-accent: #c4a265;
    --phm-muted: #a0a0a0;
    --phm-border: rgba(0, 0, 0, 0.06);
    --phm-font-serif: 'Cormorant Garamond', serif;
    --phm-font-sans: 'Inter', -apple-system, sans-serif;
}

/* Dark Mode */
@media (prefers-color-scheme: dark) {
    :root {
        --phm-bg: #1a1a1a;
        --phm-text: #e0e0e0;
        --phm-border: rgba(255, 255, 255, 0.06);
    }
}

/* Reset */
.phm-root * {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* Header */
.phm-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 50;
    padding: 32px 0;
    transition: all 0.7s cubic-bezier(0.77, 0, 0.175, 1);
    background: transparent;
}

.phm-header.scrolled {
    padding: 16px 0;
    background: rgba(250, 248, 245, 0.9);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--phm-border);
}

.phm-header-inner {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

/* Header Left */
.phm-header-left {
    flex: 1;
    display: flex;
}

.phm-menu-toggle {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    border: 1px solid var(--phm-border);
    border-radius: 50%;
    cursor: pointer;
    transition: all 0.5s cubic-bezier(0.77, 0, 0.175, 1);
}

.phm-menu-toggle:hover {
    background: var(--phm-text);
    border-color: var(--phm-text);
}

.phm-menu-toggle:hover .phm-hamburger-line {
    background: var(--phm-bg);
}

/* Hamburger Icon */
.phm-hamburger {
    position: relative;
    width: 20px;
    height: 14px;
}

.phm-hamburger-line {
    position: absolute;
    width: 20px;
    height: 1.5px;
    background: var(--phm-text);
    border-radius: 2px;
    transition: all 0.4s cubic-bezier(0.77, 0, 0.175, 1);
    left: 0;
}

.phm-hamburger-line:first-child {
    top: 0;
}

.phm-hamburger-line:last-child {
    bottom: 0;
}

/* Active Hamburger (Cross) */
.phm-overlay-active .phm-menu-toggle {
    background: var(--phm-text);
    border-color: var(--phm-text);
}

.phm-overlay-active .phm-hamburger-line {
    background: var(--phm-bg);
}

.phm-overlay-active .phm-hamburger-line:first-child {
    transform: translateY(6px) rotate(45deg);
}

.phm-overlay-active .phm-hamburger-line:last-child {
    transform: translateY(-6px) rotate(-45deg);
}

/* Logo */
.phm-header-center {
    text-align: center;
}

.phm-logo {
    text-decoration: none;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.phm-logo-text {
    font-family: var(--phm-font-serif);
    font-size: 28px;
    letter-spacing: -0.02em;
    color: var(--phm-text);
}

.phm-logo-accent {
    font-style: italic;
    color: var(--phm-accent);
}

.phm-logo-sub {
    font-family: var(--phm-font-sans);
    font-size: 8px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5em;
    color: var(--phm-muted);
    margin-top: 4px;
    transition: all 0.5s ease;
}

.phm-header.scrolled .phm-logo-sub {
    opacity: 0;
    height: 0;
    margin-top: 0;
    overflow: hidden;
}

/* Header Right */
.phm-header-right {
    flex: 1;
    display: flex;
    justify-content: flex-end;
}

.phm-cart-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px 12px;
}

.phm-cart-label {
    font-family: var(--phm-font-sans);
    font-size: 10px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.2em;
    color: var(--phm-text);
}

.phm-cart-count {
    font-size: 12px;
    font-weight: 600;
    color: var(--phm-accent);
}

/* ============================================
   FULL SCREEN OVERLAY
   ============================================ */

.phm-overlay {
    position: fixed;
    inset: 0;
    z-index: 40;
    background: var(--phm-bg);
    transform: translateY(-100%);
    transition: transform 0.7s cubic-bezier(0.77, 0, 0.175, 1);
    overflow: hidden;
}

.phm-overlay-active .phm-overlay {
    transform: translateY(0);
}

/* Background Decor */
.phm-bg-noise {
    position: fixed;
    inset: 0;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.65' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)' opacity='0.03'/%3E%3C/svg%3E");
    opacity: 0.5;
    pointer-events: none;
}

.phm-bg-shape {
    position: fixed;
    top: 0;
    right: 0;
    width: 50%;
    height: 100%;
    background: rgba(0, 0, 0, 0.02);
    transform: skewX(-12deg) translateX(20%);
    pointer-events: none;
}

/* Scrollable Content */
.phm-overlay-scroll {
    height: 100vh;
    width: 100%;
    overflow-y: auto;
    overflow-x: hidden;
    -webkit-overflow-scrolling: touch;
}

.phm-overlay-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 120px 32px 80px;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    position: relative;
}

/* Navigation */
.phm-nav {
    display: flex;
    flex-direction: column;
    gap: 16px;
    max-width: 1000px;
    margin-bottom: 80px;
}

.phm-nav-item {
    display: flex;
    align-items: flex-end;
    gap: 20px;
    padding: 16px 0;
    border-bottom: 1px solid var(--phm-border);
    text-decoration: none;
    color: var(--phm-text);
    opacity: 0;
    transform: translateY(48px);
    transition: opacity 0.7s ease, transform 0.7s ease, color 0.3s ease;
}

.phm-overlay-active .phm-nav-item {
    opacity: 1;
    transform: translateY(0);
}

/* Staggered Delays */
.phm-nav-item:nth-child(1) { transition-delay: 0.3s; }
.phm-nav-item:nth-child(2) { transition-delay: 0.4s; }
.phm-nav-item:nth-child(3) { transition-delay: 0.5s; }
.phm-nav-item:nth-child(4) { transition-delay: 0.6s; }
.phm-nav-item:nth-child(5) { transition-delay: 0.7s; }
.phm-nav-item:nth-child(6) { transition-delay: 0.8s; }

.phm-nav-item:hover {
    color: var(--phm-accent);
}

.phm-nav-number {
    font-family: var(--phm-font-sans);
    font-size: 10px;
    font-weight: 700;
    color: var(--phm-muted);
    letter-spacing: 0.2em;
    text-transform: uppercase;
    margin-bottom: 8px;
    min-width: 35px;
}

.phm-nav-title {
    font-family: var(--phm-font-serif);
    font-size: clamp(40px, 8vw, 96px);
    font-weight: 400;
    line-height: 0.9;
    letter-spacing: -0.02em;
    transition: transform 0.5s ease;
}

.phm-nav-item:hover .phm-nav-title {
    transform: translateX(16px);
}

.phm-nav-arrow {
    flex: 1;
    text-align: right;
    font-size: clamp(24px, 4vw, 48px);
    font-weight: 300;
    color: var(--phm-accent);
    opacity: 0;
    transform: translateX(-32px);
    transition: opacity 0.5s ease, transform 0.5s ease;
    margin-bottom: 4px;
}

.phm-nav-item:hover .phm-nav-arrow {
    opacity: 1;
    transform: translateX(0);
}

/* Footer */
.phm-footer {
    margin-top: auto;
    padding-top: 40px;
    opacity: 0;
    transform: translateY(32px);
    transition: opacity 0.7s ease 0.9s, transform 0.7s ease 0.9s;
}

.phm-overlay-active .phm-footer {
    opacity: 1;
    transform: translateY(0);
}

.phm-footer-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 40px;
}

@media (min-width: 768px) {
    .phm-footer-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 60px;
    }
}

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

.phm-footer-label {
    font-family: var(--phm-font-sans);
    font-size: 10px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.3em;
    color: var(--phm-muted);
    margin-bottom: 8px;
}

.phm-footer-link {
    font-size: 14px;
    font-weight: 300;
    color: var(--phm-text);
    text-decoration: underline;
    text-underline-offset: 4px;
    text-decoration-color: var(--phm-border);
    transition: color 0.3s ease;
}

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

.phm-footer-text {
    font-size: 14px;
    font-weight: 300;
    color: var(--phm-text);
    line-height: 1.6;
}

/* Social */
.phm-social-col {
    align-items: flex-start;
}

@media (min-width: 768px) {
    .phm-social-col {
        align-items: flex-end;
    }
}

.phm-social {
    display: flex;
    gap: 24px;
}

.phm-social-link {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--phm-border);
    border-radius: 50%;
    font-family: var(--phm-font-sans);
    font-size: 10px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    text-decoration: none;
    color: var(--phm-text);
    transition: all 0.3s ease;
}

.phm-social-link:hover {
    background: var(--phm-accent);
    border-color: var(--phm-accent);
    color: white;
}

/* Watermark */
.phm-watermark {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-family: var(--phm-font-serif);
    font-size: 35vw;
    font-weight: 700;
    line-height: 0.8;
    text-transform: uppercase;
    letter-spacing: -0.05em;
    color: rgba(0, 0, 0, 0.015);
    pointer-events: none;
    user-select: none;
    white-space: nowrap;
    z-index: -1;
}

/* Mobile */
@media (max-width: 480px) {
    .phm-header {
        padding: 20px 0;
    }
    
    .phm-header-inner {
        padding: 0 16px;
    }
    
    .phm-logo-text {
        font-size: 22px;
    }
    
    .phm-overlay-container {
        padding: 100px 20px 60px;
    }
    
    .phm-nav {
        gap: 8px;
    }
    
    .phm-nav-item {
        padding: 12px 0;
    }
    
    .phm-nav-title {
        font-size: 40px;
    }
}

/* Safe Area */
@supports (padding-top: env(safe-area-inset-top)) {
    .phm-header {
        padding-top: calc(32px + env(safe-area-inset-top));
    }
    
    .phm-overlay-container {
        padding-top: calc(120px + env(safe-area-inset-top));
    }
}