/* ========================================
   Gurubaa Tools - Premium Design System
   Mobile-First Approach
   ======================================== */

:root {
    /* Colors */
    --bg-primary: #0a0a0f;
    --bg-secondary: #12121a;
    --bg-card: rgba(255, 255, 255, 0.03);
    --bg-card-hover: rgba(255, 255, 255, 0.06);

    --text-primary: #ffffff;
    --text-secondary: rgba(255, 255, 255, 0.7);
    --text-muted: rgba(255, 255, 255, 0.5);

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

    /* Gradients */
    --gradient-purple-pink: linear-gradient(135deg, #9333ea, #ec4899);
    --gradient-gold-orange: linear-gradient(135deg, #f59e0b, #ea580c);
    --gradient-blue-cyan: linear-gradient(135deg, #3b82f6, #06b6d4);
    --gradient-green-teal: linear-gradient(135deg, #22c55e, #14b8a6);
    --gradient-indigo-purple: linear-gradient(135deg, #6366f1, #a855f7);
    --gradient-orange-red: linear-gradient(135deg, #f97316, #ef4444);
    --gradient-pink-rose: linear-gradient(135deg, #ec4899, #f43f5e);

    /* Mobile-first spacing */
    --container-padding: 16px;
    --card-padding: 20px;
    --gap: 16px;

    /* Border Radius */
    --radius-sm: 8px;
    --radius-md: 16px;
    --radius-lg: 20px;
    --radius-xl: 28px;

    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-medium: 0.3s ease;
    --transition-slow: 0.5s ease;
}

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

html {
    scroll-behavior: smooth;
    -webkit-tap-highlight-color: transparent;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    min-height: 100vh;
    min-height: 100dvh;
    /* Dynamic viewport height for mobile */
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

/* Animated Background */
.bg-gradient {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background:
        radial-gradient(ellipse 80% 50% at 50% -20%, rgba(120, 119, 198, 0.15), transparent),
        radial-gradient(ellipse 60% 40% at 100% 100%, rgba(147, 51, 234, 0.1), transparent),
        radial-gradient(ellipse 40% 60% at 0% 100%, rgba(59, 130, 246, 0.1), transparent);
    pointer-events: none;
    z-index: -2;
}

.bg-dots {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: radial-gradient(rgba(255, 255, 255, 0.05) 1px, transparent 1px);
    background-size: 32px 32px;
    pointer-events: none;
    z-index: -1;
}

/* Container - Mobile First */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--container-padding);
    min-height: 100vh;
    min-height: 100dvh;
    display: flex;
    flex-direction: column;
}

/* Header - Mobile First */
.header {
    text-align: center;
    padding: 24px 0 20px;
}

.logo {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    margin-bottom: 12px;
}

.logo-icon {
    font-size: 1.75rem;
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {

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

    50% {
        transform: scale(1.1);
    }
}

.logo-text {
    font-size: 1.5rem;
    font-weight: 800;
    letter-spacing: -0.02em;
}

.logo-accent {
    background: linear-gradient(135deg, #9333ea, #3b82f6);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.tagline {
    color: var(--text-secondary);
    font-size: 0.9rem;
    font-weight: 500;
}

/* Search - Mobile First */
.search-container {
    position: relative;
    max-width: 100%;
    margin: 0 auto 24px;
}

.search-input {
    width: 100%;
    padding: 14px 20px 14px 48px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    color: var(--text-primary);
    font-size: 16px;
    /* Prevents zoom on iOS */
    font-family: inherit;
    outline: none;
    transition: var(--transition-medium);
}

.search-input::placeholder {
    color: var(--text-muted);
}

.search-input:focus {
    border-color: var(--border-hover);
    background: var(--bg-card-hover);
    box-shadow: 0 0 0 4px rgba(147, 51, 234, 0.1);
}

.search-icon {
    position: absolute;
    left: 18px;
    top: 50%;
    transform: translateY(-50%);
    font-size: 1rem;
    opacity: 0.5;
}

/* Tools Grid - Mobile First (1 column) */
.tools-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--gap);
    flex: 1;
}

/* Tool Card - Mobile First */
.tool-card {
    position: relative;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: var(--card-padding);
    text-decoration: none;
    color: inherit;
    overflow: hidden;
    transition: var(--transition-medium);
    display: flex;
    flex-direction: column;
    -webkit-touch-callout: none;
}

.tool-card:active {
    transform: scale(0.98);
    background: var(--bg-card-hover);
}

/* Card Glow Effect */
.card-glow {
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    opacity: 0;
    transition: var(--transition-medium);
    pointer-events: none;
    filter: blur(60px);
}

.card-glow.purple-pink {
    background: var(--gradient-purple-pink);
}

.card-glow.gold-orange {
    background: var(--gradient-gold-orange);
}

.card-glow.blue-cyan {
    background: var(--gradient-blue-cyan);
}

.card-glow.green-teal {
    background: var(--gradient-green-teal);
}

.card-glow.indigo-purple {
    background: var(--gradient-indigo-purple);
}

.card-glow.orange-red {
    background: var(--gradient-orange-red);
}

.card-glow.pink-rose {
    background: var(--gradient-pink-rose);
}

.card-glow.cyan-blue {
    background: linear-gradient(135deg, #06b6d4, #3b82f6);
}

.card-glow.red-orange {
    background: linear-gradient(135deg, #ef4444, #f97316);
}

.card-glow.violet-indigo {
    background: linear-gradient(135deg, #8b5cf6, #6366f1);
}

.card-glow.teal-green {
    background: linear-gradient(135deg, #14b8a6, #22c55e);
}

/* Card Content */
.card-content {
    position: relative;
    z-index: 1;
    display: flex;
    flex-direction: column;
    height: 100%;
}

.tool-icon {
    font-size: 2.25rem;
    margin-bottom: 14px;
    transition: var(--transition-medium);
}

.tool-title {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 6px;
    letter-spacing: -0.01em;
}

.tool-desc {
    color: var(--text-secondary);
    font-size: 0.875rem;
    line-height: 1.5;
    margin-bottom: 14px;
    flex: 1;
}

.tool-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 5px 10px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-muted);
    width: fit-content;
}

.tool-badge.live::before {
    content: '';
    width: 6px;
    height: 6px;
    background: #22c55e;
    border-radius: 50%;
    animation: blink 1.5s ease-in-out infinite;
}

.tool-badge.market-open {
    color: #22c55e;
    border-color: rgba(34, 197, 94, 0.3);
}

.tool-badge.market-closed {
    color: #ef4444;
    border-color: rgba(239, 68, 68, 0.3);
}

@keyframes blink {

    0%,
    100% {
        opacity: 1;
    }

    50% {
        opacity: 0.3;
    }
}

/* Footer */
.footer {
    text-align: center;
    padding: 32px 0 20px;
    color: var(--text-muted);
    font-size: 0.85rem;
}

.footer a {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition-fast);
}

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

/* Hide cards that don't match search */
.tool-card.hidden {
    display: none;
}

/* ========================================
   Tablet Breakpoint (min-width: 600px)
   ======================================== */
@media (min-width: 600px) {
    :root {
        --container-padding: 20px;
        --card-padding: 24px;
        --gap: 20px;
        --radius-lg: 22px;
    }

    .header {
        padding: 36px 0 28px;
    }

    .logo-icon {
        font-size: 2rem;
    }

    .logo-text {
        font-size: 1.85rem;
    }

    .tagline {
        font-size: 1rem;
    }

    .search-container {
        max-width: 420px;
        margin-bottom: 32px;
    }

    .tools-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .tool-icon {
        font-size: 2.5rem;
        margin-bottom: 16px;
    }

    .tool-title {
        font-size: 1.15rem;
    }

    .tool-desc {
        font-size: 0.9rem;
    }

    .tool-badge {
        font-size: 0.72rem;
    }
}

/* ========================================
   Desktop Breakpoint (min-width: 900px)
   ======================================== */
@media (min-width: 900px) {
    :root {
        --container-padding: 24px;
        --card-padding: 28px;
        --gap: 24px;
        --radius-lg: 24px;
    }

    .bg-dots {
        background-size: 40px 40px;
    }

    .header {
        padding: 48px 0 32px;
    }

    .logo {
        gap: 12px;
        margin-bottom: 16px;
    }

    .logo-icon {
        font-size: 2.5rem;
    }

    .logo-text {
        font-size: 2.5rem;
    }

    .tagline {
        font-size: 1.1rem;
    }

    .search-container {
        max-width: 480px;
        margin-bottom: 40px;
    }

    .search-input {
        padding: 16px 24px 16px 52px;
    }

    .search-icon {
        left: 20px;
        font-size: 1.1rem;
    }

    .tools-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    /* Desktop hover effects */
    .tool-card:hover {
        transform: translateY(-4px);
        border-color: var(--border-hover);
        background: var(--bg-card-hover);
    }

    .tool-card:hover .card-glow {
        opacity: 0.15;
    }

    .tool-card:hover .tool-icon {
        transform: scale(1.1);
    }

    .tool-card:active {
        transform: translateY(-2px);
    }

    .tool-icon {
        font-size: 3rem;
        margin-bottom: 20px;
    }

    .tool-title {
        font-size: 1.25rem;
        margin-bottom: 8px;
    }

    .tool-desc {
        font-size: 0.95rem;
        margin-bottom: 16px;
    }

    .tool-badge {
        padding: 6px 12px;
        font-size: 0.75rem;
    }

    .footer {
        padding: 48px 0 24px;
        font-size: 0.9rem;
    }
}

/* ========================================
   Large Desktop (min-width: 1200px)
   ======================================== */
@media (min-width: 1200px) {
    .tools-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

/* ========================================
   Reduced Motion
   ======================================== */
@media (prefers-reduced-motion: reduce) {

    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        transition-duration: 0.01ms !important;
    }
}