@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@400;500;600;700;800&family=Plus+Jakarta+Sans:wght@400;500;600&display=swap');

:root {
    /* Advanced Premium Dark Mode Palette */
    --primary: #3b82f6;
    /* Bright vibrant blue */
    --primary-hover: #2563eb;
    --secondary: #8b5cf6;
    /* Vibrant purple */

    /* True Dark aesthetic with subtle depth */
    --bg-base: #020617;
    --bg-card: rgba(15, 23, 42, 0.6);
    --bg-input: rgba(30, 41, 59, 0.5);

    --text-main: #f8fafc;
    --text-muted: #94a3b8;

    --glass-border: rgba(255, 255, 255, 0.1);
    --glass-highlight: rgba(255, 255, 255, 0.05);

    --font-heading: 'Outfit', sans-serif;
    --font-body: 'Plus Jakarta Sans', sans-serif;

    --radius-lg: 20px;
    --radius-md: 12px;
    --radius-sm: 8px;

    --shadow-glow: 0 0 30px rgba(59, 130, 246, 0.15);
    --shadow-card: 0 10px 40px -10px rgba(0, 0, 0, 0.5);
}

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

body {
    background-color: var(--bg-base);
    color: var(--text-main);
    font-family: var(--font-body);
    min-height: 100vh;
    overflow-x: hidden;
    /* Advanced Animated Mesh Gradient Background */
    background-image:
        radial-gradient(circle at 15% 50%, rgba(59, 130, 246, 0.15), transparent 25%),
        radial-gradient(circle at 85% 30%, rgba(139, 92, 246, 0.15), transparent 25%);
    background-attachment: fixed;
    animation: bgPulse 15s ease-in-out infinite alternate;
}

@keyframes bgPulse {
    0% {
        background-position: 0% 0%;
    }

    100% {
        background-position: 100% 100%;
    }
}

h1,
h2,
h3,
h4,
header h1 {
    font-family: var(--font-heading);
    font-weight: 700;
    letter-spacing: -0.02em;
    background: linear-gradient(135deg, #ffffff 0%, #cbd5e1 100%);
    background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 0.5rem;
}

p {
    line-height: 1.6;
}

/* Base Layout */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 3rem 2rem;
    animation: slideUpFade 0.7s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

header {
    text-align: center;
    margin-bottom: 3rem;
    padding-bottom: 2rem;
    border-bottom: 1px solid var(--glass-border);
}

/* Forms & Inputs (Advanced styling) */
input,
select,
textarea {
    width: 100%;
    padding: 1rem 1.2rem;
    background: var(--bg-input);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
    color: var(--text-main);
    font-family: var(--font-body);
    font-size: 1rem;
    transition: all 0.3s ease;
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    outline: none;
}

input:focus,
select:focus,
textarea:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.2);
    background: rgba(30, 41, 59, 0.8);
    transform: translateY(-1px);
}

label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    font-size: 0.9rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.input-group {
    margin-bottom: 1.5rem;
}

/* Standard Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.8rem 1.8rem;
    border-radius: var(--radius-md);
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 1rem;
    text-decoration: none;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    cursor: pointer;
    border: none;
    gap: 0.5rem;
    background: var(--bg-card);
    color: var(--text-main);
    border: 1px solid var(--glass-border);
}

.btn:hover {
    background: rgba(255, 255, 255, 0.1);
    transform: translateY(-2px);
}

/* Primary Button with Gradient */
.btn-primary {
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    color: white;
    border: none;
    box-shadow: 0 4px 15px rgba(59, 130, 246, 0.4);
    position: relative;
    overflow: hidden;
}

.btn-primary::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(rgba(255, 255, 255, 0.2), transparent);
    opacity: 0;
    transition: opacity 0.3s;
}

.btn-primary:hover {
    transform: translateY(-3px) scale(1.02);
    box-shadow: 0 8px 25px rgba(139, 92, 246, 0.5);
}

.btn-primary:hover::after {
    opacity: 1;
}

/* Dynamic Layouts & Tool Container Overrides */
.layout {
    background: var(--bg-card);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    padding: 2.5rem;
    box-shadow: var(--shadow-card), var(--shadow-glow);
    position: relative;
    z-index: 10;
}

/* Back Link Overhaul */
a.btn[href="/"],
a.btn[href="../../index.html"] {
    background: transparent;
    border: none;
    padding: 0.5rem 1rem 0.5rem 0;
    color: var(--primary) !important;
    font-family: var(--font-heading);
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    transition: transform 0.2s ease;
}

a.btn[href="/"]:hover,
a.btn[href="../../index.html"]:hover {
    transform: translateX(-5px);
    background: transparent;
}

/* Pre / Code Blocks */
pre {
    background: rgba(0, 0, 0, 0.4) !important;
    padding: 1.5rem !important;
    border-radius: var(--radius-md) !important;
    border: 1px solid var(--glass-border);
    color: #e2e8f0;
    font-family: 'Consolas', monospace;
    font-size: 0.95rem;
    overflow-x: auto;
    box-shadow: inset 0 2px 10px rgba(0, 0, 0, 0.5);
}

/* Animations */
@keyframes slideUpFade {
    0% {
        opacity: 0;
        transform: translateY(30px) scale(0.98);
    }

    100% {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.fade-in {
    animation: slideUpFade 0.6s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

/* Floating Elements for aesthetics */
.floating-element {
    animation: float 6s ease-in-out infinite;
}

@keyframes float {
    0% {
        transform: translateY(0px);
    }

    50% {
        transform: translateY(-10px);
    }

    100% {
        transform: translateY(0px);
    }
}

/* --- Navbar (Agency Style) --- */
.u-nav {
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.2rem 5%;
    background: rgba(2, 6, 23, 0.7);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--glass-border);
}

.u-brand {
    font-weight: 800;
    font-size: 1.6rem;
    color: var(--text-main);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.u-brand span {
    color: var(--primary);
}

.nav-links {
    display: flex;
    gap: 2rem;
    align-items: center;
}

.nav-item {
    color: var(--text-muted);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.95rem;
    transition: 0.2s;
}

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

.tool-container {
    max-width: 1600px !important;
    width: 95%;
    margin: 0 auto;
}

/* --- Global Mobile Responsiveness --- */
@media (max-width: 768px) {

    /* Base Overrides */
    body {
        font-size: 15px;
    }

    h1,
    h2 {
        font-size: 1.8rem !important;
    }

    /* Force 2-column inline grids into a single column on mobile */
    div[style*="grid-template-columns: 1fr 1fr"],
    div[style*="grid-template-columns: repeat(2"],
    div[style*="grid-template-columns: 200px 1fr"] {
        grid-template-columns: 1fr !important;
        gap: 1.5rem !important;
    }

    /* Navigation */
    .u-nav {
        padding: 1rem 5%;
        flex-wrap: wrap;
        justify-content: center;
        text-align: center;
        gap: 1rem;
    }

    .nav-links {
        width: 100%;
        justify-content: center;
        flex-wrap: wrap;
        gap: 1rem;
    }

    /* Layout Containers */
    .container,
    .layout,
    .tool-container {
        padding: 1.5rem 1rem !important;
        width: 100% !important;
        margin-top: 5rem !important;
        /* give space for stacked nav */
    }

    /* Buttons & Inputs */
    .btn,
    .btn-primary {
        width: 100%;
        text-align: center;
        padding: 1rem !important;
    }

    input,
    select,
    textarea {
        font-size: 16px;
        /* prevent iOS zoom */
        padding: 0.8rem;
    }

    /* Code Previews */
    pre,
    .preview-section,
    .code-output {
        padding: 1rem !important;
        font-size: 0.85rem !important;
        overflow-x: auto;
    }

    /* Footer */
    footer div[style*="grid-template-columns"] {
        grid-template-columns: 1fr !important;
        text-align: center;
    }

    footer .u-brand {
        justify-content: center;
    }

    footer ul {
        align-items: center;
    }
}