/* ==========================================================================
   Warecache Base Stylesheet - Slant Tech Brand Styleguide
   ========================================================================== */

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

:root {
    /* Brand Colors */
    --orange-500: #FF7A1A;
    --orange-600: #FF6600;
    --orange-700: #E55A00;
    --orange-800: #CC5000;

    /* Neutral Colors */
    --black: #1A1614;
    --gray-900: #2D2926;
    --gray-800: #3D3835;
    --gray-700: #5C5552;
    --gray-600: #7A7370;
    --gray-500: #9A9390;
    --gray-400: #B8B2AF;
    --gray-300: #D4D0CD;
    --gray-200: #E8E5E2;
    --gray-100: #F3F1EF;

    /* Light Theme Backgrounds */
    --white: #FDFCFB;
    --cream: #F7F5F3;
    --sand: #EDE6DF;
    --peach: #f8e8d8;

    /* Typography */
    --font-display: 'Poppins', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-body: 'Work Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

    /* Spacing Scale */
    --space-1: 4px;
    --space-2: 8px;
    --space-3: 12px;
    --space-4: 16px;
    --space-5: 24px;
    --space-6: 32px;
    --space-7: 48px;
    --space-8: 64px;
    --space-9: 96px;

    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 250ms ease;
    --transition-slow: 350ms ease;

    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(26, 22, 20, 0.05);
    --shadow-md: 0 4px 6px rgba(26, 22, 20, 0.07);
    --shadow-lg: 0 10px 15px rgba(26, 22, 20, 0.1);
    --shadow-offset: 6px 6px 0 var(--black);
    --shadow-offset-sm: 4px 4px 0 var(--black);

    /* Default Light Theme Semantic Colors */
    --bg-primary: var(--white);
    --bg-secondary: var(--cream);
    --bg-tertiary: var(--sand);
    --bg-accent: var(--peach);

    --text-primary: var(--black);
    --text-secondary: var(--gray-700);
    --text-muted: var(--gray-500);
    --text-inverse: var(--white);

    --border-color: var(--black);
    --border-subtle: var(--gray-300);

    --accent-primary: var(--orange-600);
    --accent-hover: var(--orange-700);
    --accent-light: rgba(255, 102, 0, 0.1);
}

/* System Preference Dark Mode (when no explicit theme set) */
@media (prefers-color-scheme: dark) {
    :root:not([data-theme="light"]) {
        --bg-primary: #1A1614;
        --bg-secondary: #242120;
        --bg-tertiary: #2D2926;
        --bg-accent: #3D3835;

        --text-primary: var(--white);
        --text-secondary: var(--gray-300);
        --text-muted: var(--gray-500);
        --text-inverse: var(--black);

        --border-color: var(--gray-600);
        --border-subtle: var(--gray-700);

        --shadow-offset: 6px 6px 0 rgba(0, 0, 0, 0.3);
        --shadow-offset-sm: 4px 4px 0 rgba(0, 0, 0, 0.3);
    }
}

/* Explicit Dark Theme */
:root[data-theme="dark"] {
    --bg-primary: #1A1614;
    --bg-secondary: #242120;
    --bg-tertiary: #2D2926;
    --bg-accent: #3D3835;

    --text-primary: var(--white);
    --text-secondary: var(--gray-300);
    --text-muted: var(--gray-500);
    --text-inverse: var(--black);

    --border-color: var(--gray-600);
    --border-subtle: var(--gray-700);

    --shadow-offset: 6px 6px 0 rgba(0, 0, 0, 0.3);
    --shadow-offset-sm: 4px 4px 0 rgba(0, 0, 0, 0.3);
}

/* Explicit Light Theme */
:root[data-theme="light"] {
    --bg-primary: var(--white);
    --bg-secondary: var(--cream);
    --bg-tertiary: var(--sand);
    --bg-accent: var(--peach);

    --text-primary: var(--black);
    --text-secondary: var(--gray-700);
    --text-muted: var(--gray-500);
    --text-inverse: var(--white);

    --border-color: var(--black);
    --border-subtle: var(--gray-300);

    --shadow-offset: 6px 6px 0 var(--black);
    --shadow-offset-sm: 4px 4px 0 var(--black);
}

/* ==========================================================================
   CSS Reset
   ========================================================================== */

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

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

body {
    font-family: var(--font-body);
    font-weight: 400;
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--bg-primary);
    overflow-x: hidden;
}

img,
picture,
video,
canvas,
svg {
    display: block;
    max-width: 100%;
}

input,
button,
textarea,
select {
    font: inherit;
}

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

ul,
ol {
    list-style: none;
}

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

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-display);
    font-weight: 700;
    line-height: 1.2;
    letter-spacing: -0.02em;
    color: var(--text-primary);
}

h1 {
    font-size: clamp(2.5rem, 5vw, 3.5rem);
    font-weight: 800;
}

h2 {
    font-size: clamp(2rem, 4vw, 2.5rem);
}

h3 {
    font-size: clamp(1.5rem, 3vw, 1.75rem);
}

h4 {
    font-size: 1.25rem;
}

p {
    color: var(--text-secondary);
    line-height: 1.7;
}

.text-label {
    font-family: var(--font-display);
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--text-muted);
}

/* ==========================================================================
   Layout
   ========================================================================== */

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-5);
}

section {
    padding: var(--space-9) 0;
}

/* ==========================================================================
   Header & Navigation
   ========================================================================== */

header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background-color: var(--bg-secondary);
    border-bottom: 2px solid var(--border-color);
    transition: background-color var(--transition-base);
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--space-4) 0;
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-family: var(--font-display);
    font-size: 1.75rem;
    font-weight: 800;
    color: var(--accent-primary);
    letter-spacing: -0.02em;
}

.logo-img {
    height: 36px;
    width: auto;
}

.logo-text {
    display: inline;
}

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

.nav-links {
    display: flex;
    align-items: center;
    gap: var(--space-6);
}

.nav-links a {
    font-family: var(--font-body);
    font-weight: 500;
    color: var(--text-primary);
    transition: color var(--transition-fast);
    position: relative;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--accent-primary);
    transition: width var(--transition-fast);
}

.nav-links a:hover {
    color: var(--accent-primary);
}

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

/* Nav Controls (theme toggle + menu toggle) */
.nav-controls {
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

/* Theme Toggle Button */
.theme-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: transparent;
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.theme-toggle:hover {
    background-color: var(--accent-light);
    border-color: var(--accent-primary);
}

.theme-toggle .bx {
    font-size: 20px;
    line-height: 1;
}

/* Show sun in dark mode, moon in light mode */
.theme-toggle .bx-sun {
    display: none;
}

.theme-toggle .bx-moon {
    display: block;
}

:root[data-theme="dark"] .theme-toggle .bx-sun,
:root:not([data-theme="light"]) .theme-toggle .bx-sun {
    display: block;
}

:root[data-theme="dark"] .theme-toggle .bx-moon,
:root:not([data-theme="light"]) .theme-toggle .bx-moon {
    display: none;
}

@media (prefers-color-scheme: light) {
    :root:not([data-theme="dark"]) .theme-toggle .bx-sun {
        display: none;
    }
    :root:not([data-theme="dark"]) .theme-toggle .bx-moon {
        display: block;
    }
}

/* Hamburger Menu Button */
.menu-toggle {
    display: none;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: transparent;
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.menu-toggle:hover {
    background-color: var(--accent-light);
    border-color: var(--accent-primary);
}

.menu-toggle .bx {
    font-size: 24px;
    line-height: 1;
}

.menu-toggle .bx-x {
    display: none;
}

.menu-toggle.active .bx-menu {
    display: none;
}

.menu-toggle.active .bx-x {
    display: block;
}

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

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-3) var(--space-5);
    font-family: var(--font-display);
    font-size: 1rem;
    font-weight: 600;
    text-align: center;
    border: 2px solid transparent;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
    text-decoration: none;
}

.btn-primary {
    background-color: var(--accent-primary);
    color: var(--white);
    border-color: var(--accent-primary);
}

.btn-primary:hover {
    background-color: var(--accent-hover);
    border-color: var(--accent-hover);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(255, 102, 0, 0.3);
}

.btn-secondary {
    background-color: var(--black);
    color: var(--white);
    border-color: var(--black);
}

.btn-secondary:hover {
    background-color: var(--gray-800);
    transform: translateY(-2px);
}

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

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

.btn:disabled {
    background-color: var(--gray-400);
    border-color: var(--gray-400);
    color: var(--gray-600);
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

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

.card {
    background-color: var(--bg-primary);
    border: 3px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: var(--space-6);
    transition: all var(--transition-fast);
}

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

.card-accent {
    position: relative;
}

.card-accent::before {
    content: '';
    position: absolute;
    top: var(--space-4);
    left: var(--space-4);
    width: 32px;
    height: 32px;
    border-top: 6px solid var(--accent-primary);
    border-left: 6px solid var(--accent-primary);
}

/* ==========================================================================
   Section Titles
   ========================================================================== */

.section-title {
    text-align: center;
    margin-bottom: var(--space-7);
}

.section-title h2 {
    margin-bottom: var(--space-3);
}

.section-title p {
    max-width: 600px;
    margin: 0 auto;
}

/* ==========================================================================
   Footer
   ========================================================================== */

footer {
    background-color: var(--bg-secondary);
    border-top: 2px solid var(--border-color);
    padding: var(--space-8) 0 var(--space-6);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--space-7);
    margin-bottom: var(--space-7);
}

.footer-section h4 {
    font-family: var(--font-display);
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: var(--space-4);
    color: var(--text-primary);
}

.footer-section p {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.footer-section a {
    display: block;
    font-size: 0.9rem;
    color: var(--text-secondary);
    padding: var(--space-1) 0;
    transition: color var(--transition-fast);
}

.footer-section a:hover {
    color: var(--accent-primary);
}

.footer-bottom {
    text-align: center;
    padding-top: var(--space-6);
    border-top: 1px solid var(--border-subtle);
}

.footer-bottom p {
    font-size: 0.85rem;
    color: var(--text-muted);
}

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

input[type="text"],
input[type="email"],
input[type="password"],
textarea {
    width: 100%;
    padding: var(--space-3) var(--space-4);
    font-size: 1rem;
    color: var(--text-primary);
    background-color: var(--bg-primary);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

input[type="text"]:focus,
input[type="email"]:focus,
input[type="password"]:focus,
textarea:focus {
    outline: none;
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 3px var(--accent-light);
}

input[type="text"]::placeholder,
input[type="email"]::placeholder,
input[type="password"]::placeholder,
textarea::placeholder {
    color: var(--text-muted);
}

input[type="submit"] {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-3) var(--space-5);
    font-family: var(--font-display);
    font-size: 1rem;
    font-weight: 600;
    background-color: var(--accent-primary);
    color: var(--white);
    border: 2px solid var(--accent-primary);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
}

input[type="submit"]:hover {
    background-color: var(--accent-hover);
    border-color: var(--accent-hover);
    transform: translateY(-2px);
}

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

.highlight {
    color: var(--accent-primary);
}

.text-center {
    text-align: center;
}

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

/* ==========================================================================
   Hero Section Base Styles
   ========================================================================== */

.hero {
    padding: 140px 0 var(--space-8);
    background-color: var(--bg-accent);
    text-align: center;
}

.hero h1 {
    max-width: 800px;
    margin: 0 auto var(--space-4);
}

.hero p {
    font-size: 1.2rem;
    max-width: 650px;
    margin: 0 auto;
}

/* ==========================================================================
   Card Animation Pattern
   ========================================================================== */

.animate-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.animate-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ==========================================================================
   Accent Corner Decoration
   ========================================================================== */

.card-accent-corner::before {
    content: '';
    position: absolute;
    top: var(--space-4);
    left: var(--space-4);
    width: 24px;
    height: 24px;
    border-top: 5px solid var(--accent-primary);
    border-left: 5px solid var(--accent-primary);
}

/* ==========================================================================
   Responsive Breakpoints
   ========================================================================== */

@media (max-width: 1024px) {
    .nav-links {
        gap: var(--space-4);
    }
}

@media (max-width: 768px) {
    :root {
        --space-9: 64px;
    }

    .hero {
        padding: 120px 0 var(--space-7);
    }

    .menu-toggle {
        display: flex;
    }

    .nav-links {
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background-color: var(--bg-secondary);
        border-bottom: 2px solid var(--border-color);
        flex-direction: column;
        align-items: stretch;
        padding: 0 var(--space-5);
        gap: 0;
        max-height: 0;
        overflow: hidden;
        transition: max-height var(--transition-base), padding var(--transition-base);
        z-index: 999;
    }

    .nav-links.active {
        max-height: 500px;
        padding: var(--space-4) var(--space-5);
    }

    .nav-links li {
        width: 100%;
    }

    .nav-links a {
        display: block;
        padding: var(--space-4) var(--space-4);
        margin: 0 calc(-1 * var(--space-4));
        font-size: 1.15rem;
        text-align: center;
        border-bottom: none;
        border-radius: var(--radius-md);
        transition: background-color var(--transition-fast), color var(--transition-fast);
    }

    .nav-links a:hover {
        background-color: var(--accent-primary);
        color: var(--white);
    }

    .nav-links a::after {
        display: none;
    }

    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
}