/*
Theme Name: Andrew Neru Portfolio
Theme URI: https://andrewneru.com
Author: Andrew Neru
Author URI: https://andrewneru.com
Description: A modern, dark-themed portfolio with AI-powered conversational interface, PWA support, and integrated payments.
Version: 1.0.0
Requires at least: 6.0
Tested up to: 6.4
Requires PHP: 8.0
License: GNU General Public License v2 or later
License URI: http://www.gnu.org/licenses/gpl-2.0.html
Text Domain: andrew-neru
*/

/* ==========================================================================
   CSS Custom Properties (Design Tokens)
   ========================================================================== */

:root {
    /* Colors - Dark Theme */
    --color-bg-primary: #0a0a0f;
    --color-bg-secondary: #12121a;
    --color-bg-tertiary: #1a1a24;
    --color-bg-elevated: #22222e;

    /* Accent Colors - Cyan/Teal */
    --color-accent: #00d4d4;
    --color-accent-hover: #00e5e5;
    --color-accent-muted: rgba(0, 212, 212, 0.15);
    --color-accent-glow: rgba(0, 212, 212, 0.4);

    /* Text Colors */
    --color-text-primary: #ffffff;
    --color-text-secondary: #a0a0b0;
    --color-text-muted: #6a6a7a;

    /* Borders */
    --color-border: rgba(255, 255, 255, 0.08);
    --color-border-hover: rgba(255, 255, 255, 0.15);

    /* Gradients */
    --gradient-accent: linear-gradient(135deg, #00d4d4 0%, #00a5a5 100%);
    --gradient-dark: linear-gradient(180deg, #0a0a0f 0%, #12121a 100%);
    --gradient-glow: radial-gradient(ellipse at center, var(--color-accent-glow) 0%, transparent 70%);

    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-display: 'Outfit', var(--font-primary);

    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 2rem;
    --font-size-4xl: 2.5rem;
    --font-size-5xl: 3.5rem;
    --font-size-hero: clamp(3rem, 8vw, 6rem);

    --font-weight-normal: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;

    --line-height-tight: 1.1;
    --line-height-normal: 1.5;
    --line-height-relaxed: 1.75;

    /* 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;

    /* Border Radius */
    --radius-sm: 0.25rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
    --radius-full: 9999px;

    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.5);
    --shadow-xl: 0 20px 25px rgba(0, 0, 0, 0.6);
    --shadow-glow: 0 0 30px var(--color-accent-glow);

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 250ms ease;
    --transition-slow: 400ms ease;

    /* Z-Index Scale */
    --z-dropdown: 100;
    --z-sticky: 200;
    --z-fixed: 300;
    --z-modal-backdrop: 400;
    --z-modal: 500;
    --z-popover: 600;
    --z-tooltip: 700;
}

/* ==========================================================================
   CSS Reset & Base Styles
   ========================================================================== */

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

html {
    font-size: 16px;
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-primary);
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-normal);
    line-height: var(--line-height-normal);
    color: var(--color-text-primary);
    background-color: var(--color-bg-primary);
    min-height: 100vh;
    overflow-x: hidden;
}

/* WordPress Admin Bar Fix */
body.admin-bar .site-header {
    top: 32px;
}

@media screen and (max-width: 782px) {
    body.admin-bar .site-header {
        top: 46px;
    }
}

/* ==========================================================================
   Typography
   ========================================================================== */

h1,
h2,
h3,
h4,
h5,
h6 {
    font-family: var(--font-display);
    font-weight: var(--font-weight-bold);
    line-height: var(--line-height-tight);
    color: var(--color-text-primary);
}

h1 {
    font-size: var(--font-size-5xl);
}

h2 {
    font-size: var(--font-size-4xl);
}

h3 {
    font-size: var(--font-size-3xl);
}

h4 {
    font-size: var(--font-size-2xl);
}

h5 {
    font-size: var(--font-size-xl);
}

h6 {
    font-size: var(--font-size-lg);
}

p {
    color: var(--color-text-secondary);
    margin-bottom: var(--space-4);
}

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

a:hover {
    color: var(--color-accent-hover);
}

/* ==========================================================================
   Utility Classes
   ========================================================================== */

.container {
    width: 100%;
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--space-6);
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* ==========================================================================
   Buttons
   ========================================================================== */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-6);
    font-family: var(--font-primary);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    line-height: 1;
    text-decoration: none;
    border: 1px solid transparent;
    border-radius: var(--radius-lg);
    cursor: pointer;
    transition: all var(--transition-base);
}

.btn-primary {
    background: var(--gradient-accent);
    color: var(--color-bg-primary);
    box-shadow: var(--shadow-glow);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 0 40px var(--color-accent-glow);
}

.btn-secondary {
    background: transparent;
    color: var(--color-text-primary);
    border-color: var(--color-border);
}

.btn-secondary:hover {
    border-color: var(--color-accent);
    color: var(--color-accent);
}

.btn-ghost {
    background: transparent;
    color: var(--color-text-secondary);
    padding: var(--space-2) var(--space-4);
}

.btn-ghost:hover {
    color: var(--color-text-primary);
    background: var(--color-bg-tertiary);
}

/* ==========================================================================
   Cards
   ========================================================================== */

.card {
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    padding: var(--space-6);
    transition: all var(--transition-base);
}

.card:hover {
    border-color: var(--color-border-hover);
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.card-glass {
    background: rgba(18, 18, 26, 0.8);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
}

/* ==========================================================================
   Form Elements
   ========================================================================== */

input,
textarea,
select {
    font-family: var(--font-primary);
    font-size: var(--font-size-base);
    color: var(--color-text-primary);
    background: var(--color-bg-tertiary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--space-3) var(--space-4);
    width: 100%;
    transition: all var(--transition-fast);
}

input:focus,
textarea:focus,
select:focus {
    outline: none;
    border-color: var(--color-accent);
    box-shadow: 0 0 0 3px var(--color-accent-muted);
}

input::placeholder,
textarea::placeholder {
    color: var(--color-text-muted);
}

/* ==========================================================================
   Animations
   ========================================================================== */

@keyframes fadeIn {
    from {
        opacity: 0;
    }

    to {
        opacity: 1;
    }
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes pulse {

    0%,
    100% {
        opacity: 1;
    }

    50% {
        opacity: 0.5;
    }
}

@keyframes glow {

    0%,
    100% {
        box-shadow: 0 0 20px var(--color-accent-glow);
    }

    50% {
        box-shadow: 0 0 40px var(--color-accent-glow);
    }
}

.animate-fade-in {
    animation: fadeIn var(--transition-base) ease forwards;
}

.animate-slide-up {
    animation: slideUp var(--transition-slow) ease forwards;
}

.animate-pulse {
    animation: pulse 2s ease-in-out infinite;
}

.animate-glow {
    animation: glow 2s ease-in-out infinite;
}

/* ==========================================================================
   Layout Components - ELITE NAV
   ========================================================================== */

.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 9999;
    padding: 12px 0;
    background: rgba(7, 7, 9, 0.85);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    border-bottom: 1px solid rgba(255, 255, 255, 0.04);
    transition: all 0.25s ease;
}

.site-header::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(0, 212, 255, 0.3), rgba(176, 80, 255, 0.2), transparent);
    opacity: 0.6;
}

.site-header.scrolled {
    padding: 8px 0;
    background: rgba(7, 7, 9, 0.95);
}

.site-header .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: 1400px;
    padding: 0 32px;
}

.site-logo {
    font-family: var(--font-display);
    font-size: 1.1rem;
    font-weight: 700;
    color: #fff;
    text-decoration: none;
    letter-spacing: -0.02em;
    display: flex;
    align-items: center;
    gap: 6px;
    transition: color 0.2s ease;
}

.site-logo:hover {
    color: #00d4ff;
}

.site-logo img {
    height: 28px;
    width: auto;
}

.site-logo span {
    background: linear-gradient(135deg, #00d4ff, #b050ff);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.main-nav {
    display: flex;
    align-items: center;
    gap: 2px;
    list-style: none;
    margin: 0;
    padding: 0;
}

.main-nav li {
    list-style: none;
}

.main-nav a {
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.8rem;
    font-weight: 500;
    padding: 8px 14px;
    border-radius: 8px;
    transition: all 0.15s ease;
    text-decoration: none;
}

.main-nav a:hover {
    color: #fff;
    background: rgba(255, 255, 255, 0.05);
}

.main-nav a.active,
.main-nav a[aria-current="page"],
.main-nav .current-menu-item a,
.main-nav .current_page_item a {
    color: #00d4ff;
    background: rgba(0, 212, 255, 0.1);
}

.header-cta {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 16px;
    background: linear-gradient(135deg, rgba(0, 212, 255, 0.15), rgba(176, 80, 255, 0.1));
    border: 1px solid rgba(0, 212, 255, 0.2);
    border-radius: 8px;
    color: #00d4ff;
    font-size: 0.8rem;
    font-weight: 500;
    text-decoration: none;
    margin-left: 8px;
    transition: all 0.2s ease;
}

.header-cta:hover {
    background: linear-gradient(135deg, rgba(0, 212, 255, 0.25), rgba(176, 80, 255, 0.15));
    border-color: rgba(0, 212, 255, 0.4);
    transform: translateY(-1px);
}

.header-phone {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 34px;
    height: 34px;
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.05);
    color: rgba(255, 255, 255, 0.6);
    margin-left: 8px;
    transition: all 0.2s ease;
}

.header-phone:hover {
    background: rgba(0, 212, 255, 0.15);
    color: #00d4ff;
}

/* Mobile nav toggle */
.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    padding: 8px;
    background: transparent;
    border: none;
    cursor: pointer;
}

.nav-toggle span {
    width: 20px;
    height: 2px;
    background: #fff;
    border-radius: 1px;
    transition: all 0.2s ease;
}

@media (max-width: 768px) {
    .site-header .container {
        padding: 0 16px;
    }

    .nav-toggle {
        display: flex;
    }

    .main-nav {
        position: fixed;
        top: 56px;
        left: 0;
        right: 0;
        bottom: 0;
        background: rgba(7, 7, 9, 0.98);
        flex-direction: column;
        padding: 24px;
        gap: 8px;
        transform: translateX(-100%);
        transition: transform 0.3s ease;
    }

    .main-nav.open {
        transform: translateX(0);
    }

    .main-nav a {
        font-size: 1rem;
        padding: 12px 16px;
        width: 100%;
    }

    .header-cta {
        width: 100%;
        justify-content: center;
        margin: 16px 0 0;
    }
}

.site-footer {
    padding: var(--space-16) 0;
    background: var(--color-bg-secondary);
    border-top: 1px solid var(--color-border);
}

/* ==========================================================================
   Media Queries
   ========================================================================== */

@media (max-width: 768px) {
    :root {
        --font-size-5xl: 2.5rem;
        --font-size-4xl: 2rem;
        --font-size-3xl: 1.75rem;
    }

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

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

@media (max-width: 480px) {
    .main-nav {
        display: none;
    }
}

/* Mobile Menu Button */
.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--space-2);
}

.mobile-menu-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--color-text-primary);
    border-radius: 2px;
    transition: all 0.3s ease;
}

@media (max-width: 768px) {
    .mobile-menu-toggle {
        display: flex;
    }

    .main-nav {
        position: fixed;
        top: 0;
        right: -300px;
        width: 280px;
        height: 100vh;
        background: var(--color-bg-secondary);
        flex-direction: column;
        padding: 80px var(--space-6) var(--space-6);
        gap: var(--space-2);
        transition: right 0.3s ease;
        border-left: 1px solid var(--color-border);
    }

    .main-nav.active {
        right: 0;
    }

    .main-nav a {
        width: 100%;
        padding: var(--space-3) var(--space-4);
    }
}