frontend/css/initial.css

/* =============================================
   UrbanFlow — initial.css (Mobile-First)
   Same design system, fully touch-friendly
   ============================================= */

:root {
    --cocoa:    #8b5e3c;
    --cocoa-l:  #c89a6c;
    --cocoa-xl: #d4b08a;
    --t1:       #f0ece6;
    --t2:       #a89f97;
    --border:   #2a2a2a;
}

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

html {
    scrollbar-width: none;
}
html::-webkit-scrollbar {
    display: none;
}

body {
    overflow-x: hidden;
    width: 100%;
    font-family: 'Montserrat', sans-serif;
    background-color: #000000;
    color: var(--t1);
    margin: 0;
    -webkit-tap-highlight-color: transparent;
    scrollbar-width: none; /* Firefox */
}
body::-webkit-scrollbar {
    display: none; /* Chrome, Safari, Edge */
}

/* ---- Fade animation ---- */
.fade-in {
    animation: fadeIn 0.4s ease-in-out forwards;
}
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to   { opacity: 1; transform: translateY(0); }
}

/* ---- Feature List Animation ---- */
@keyframes fadeSlideIn {
    from { opacity: 0; transform: translateX(-8px); }
    to   { opacity: 1; transform: translateX(0); }
}
.hero-text-section ul li {
    opacity: 0;
    animation: fadeSlideIn 0.4s ease-out forwards;
}
.hero-text-section ul li:nth-child(1) { animation-delay: 0.1s; }
.hero-text-section ul li:nth-child(2) { animation-delay: 0.2s; }
.hero-text-section ul li:nth-child(3) { animation-delay: 0.3s; }
.hero-text-section ul li:nth-child(4) { animation-delay: 0.4s; }
.hero-text-section ul li:nth-child(5) { animation-delay: 0.5s; }

/* ---- Card ---- */
.traffic-dynamics-card {
    background-color: #0a0a0a !important;
    border: none !important;
    position: relative;
    transition: box-shadow 0.3s ease;
    z-index: 0;
}

/* Shimmer border — only on the 2px ring, not inside the card */
.traffic-dynamics-card::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: inherit;
    padding: 2px;
    background: linear-gradient(
        90deg,
        var(--cocoa) 0%,
        var(--cocoa-l) 30%,
        rgba(255,255,255,0.7) 50%,
        var(--cocoa-l) 70%,
        var(--cocoa) 100%
    );
    background-size: 200% 100%;
    animation: borderShimmer 2.4s linear infinite;
    -webkit-mask:
        linear-gradient(#fff 0 0) content-box,
        linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    pointer-events: none;
}
@keyframes borderShimmer {
    0%   { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}
.traffic-dynamics-card:hover::before {
    animation-duration: 1.2s;
}
.traffic-dynamics-card:hover {
    box-shadow: 0 0 32px 0 rgba(200,154,108,0.18);
}


/* ---- Dropzone ---- */
#dropzone {
    transition: all 0.2s ease;
    border-color: #2a2a2a;
    /* finger-friendly minimum height */
    min-height: 160px;
}
#dropzone:hover,
#dropzone:active,
#dropzone.dz-active {
    border-color: var(--cocoa-l) !important;
    background-color: #0d0d0d !important;
}

/* ---- Core badge ---- */
.core-badge {
    background-color: var(--cocoa) !important;
    color: var(--t1) !important;
}

/* ---- Onboarding ---- */
.onboard-overlay {
    position: fixed; inset: 0; z-index: 9999;
    background: rgba(0,0,0,0.92);
    display: flex; align-items: center; justify-content: center;
    padding: 16px;
}
.onboard-card {
    background: #0a0a0a;
    border: 1px solid #2a2a2a;
    border-radius: 16px;
    max-width: 440px;
    width: 100%;
    padding: 32px 24px;
    text-align: center;
}
.onboard-step { display: none; }
.onboard-step.active { display: block; }
.onboard-dots {
    display: flex; gap: 6px;
    justify-content: center;
    margin-top: 20px;
}
.onboard-dot {
    width: 8px; height: 8px;
    border-radius: 50%;
    background: #333;
    transition: background 0.2s;
}
.onboard-dot.active { background: var(--cocoa-l); }

/* Onboarding buttons — large touch targets */
.onboard-card .flex.gap-3 button {
    min-height: 44px;
    padding: 10px 20px;
    font-size: 11px;
}

/* Onboarding Icon Pulse */
@keyframes iconPulse {
    0% { transform: scale(1); }
    50% { transform: scale(1.12); }
    100% { transform: scale(1); }
}
.pulse-once {
    animation: iconPulse 0.35s ease;
}

/* ---- Canvas container — touch hint ---- */
#drawing-canvas {
    touch-action: none; /* prevents scroll while drawing */
}

/* ---- Upload progress ---- */
#upload-progress-container {
    padding: 0 4px;
}
#upload-bar {
    transition: width 0.3s ease-out;
    position: relative;
}

/* Shimmer overlay */
#upload-bar::after {
    content: '';
    position: absolute;
    top: 0; right: 0; bottom: 0; left: 0;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.4), transparent);
    transform: translateX(-100%);
    animation: shimmer 1.5s infinite;
}
@keyframes shimmer {
    100% { transform: translateX(100%); }
}

/* =============================================
   DESKTOP (≥1024px) — original layout
   ============================================= */
@media (min-width: 1024px) {
    header { margin-top: 4rem; }

    main {
        display: grid !important;
        grid-template-columns: repeat(12, 1fr) !important;
        gap: 5rem !important;
        padding: 2rem 2.5rem !important;
        align-items: center;
        min-height: 70vh !important;
    }

    /* Stable card on desktop */
    main > div:last-child {
        height: 520px !important;
        overflow: hidden !important;
        margin-bottom: 0 !important;
        display: flex;
        flex-direction: column;
        justify-content: center;
    }

    /* Steps scroll internally */
    #step-modules, #step-upload, #step-draw {
        overflow-y: auto !important;
        height: auto !important;
        max-height: 100% !important;
        padding-right: 8px;
    }

    /* Clamped font size to avoid overflow */
    .hero-title { font-size: clamp(3rem, 4.5vw, 4.5rem) !important; line-height: 1.1 !important; }

    #dropzone { min-height: 200px; }
}

/* =============================================
   TABLET (640px – 1023px)
   ============================================= */
@media (min-width: 640px) and (max-width: 1023px) {
    header { margin-top: 2rem; }
    header img { height: 8rem !important; }

    main {
        display: flex !important;
        flex-direction: column !important;
        padding: 1.5rem !important;
        gap: 2rem !important;
    }

    .hero-title { font-size: 2.8rem !important; }

    /* Hero text section — centered on tablet */
    main > div:first-child {
        text-align: center;
        padding-bottom: 0 !important;
    }

    main > div:first-child ul {
        display: inline-block;
        text-align: left;
    }

    /* Step card — full width */
    main > div:last-child {
        max-width: 100% !important;
        width: 100% !important;
    }

    #dropzone { min-height: 180px; }
}

/* =============================================
   MOBILE (< 640px) — redesigned mobile layout
   ============================================= */
@media (max-width: 639px) {

    /* ---- Body: single-column scroll ---- */
    body {
        overflow-y: auto !important;
        overflow-x: hidden !important;
    }

    /* ---- Header — compact logo ---- */
    header {
        margin-top: 2rem !important;
        margin-bottom: 0 !important;
        padding: 0 20px;
    }
    header img {
        height: 7rem !important;
    }

    /* ---- Main — stacked column ---- */
    main {
        display: flex !important;
        flex-direction: column !important;
        padding: 20px 16px 8px !important;
        gap: 20px !important;
        max-width: 100% !important;
    }

    /* ---- Hero text: SHOW on mobile (compact) ---- */
    .hero-text-section {
        display: flex !important;
        flex-direction: column;
        align-items: center;
        text-align: center;
        padding-bottom: 0 !important;
        order: 1;
    }

    /* Mobile hero title styling */
    .hero-title {
        font-size: 2.8rem !important;
        line-height: 1.15 !important;
        margin-top: 10px !important;
        text-align: center !important;
    }

    /* DEMO badge + tagline row */
    .hero-text-section > p:first-of-type {
        font-size: 11.5px !important;
        letter-spacing: 0.18em !important;
        margin-bottom: 14px !important;
        justify-content: center;
    }

    /* Feature bullets */
    .hero-text-section ul {
        display: flex !important;
        flex-direction: column !important;
        gap: 4px !important;
        width: 100%;
        text-align: left;
    }

    .hero-text-section ul li {
        display: flex !important;
        align-items: flex-start !important;
        font-size: 14px !important;
        font-weight: 500 !important;
        line-height: 1.6 !important;
        padding: 5px 0;
        color: #a89f97 !important;
    }
    
    .hero-text-section ul li i {
        font-size: 14px !important;
        margin-right: 10px !important;
        margin-top: 2px;
        flex-shrink: 0;
    }

    /* ---- Step card: full width, right below bullets ---- */
    .step-card-section {
        max-width: 100% !important;
        width: 100% !important;
        min-height: unset !important;
        height: auto !important;
        margin: 0 !important;
        order: 2;
    }

    /* The fixed-height container that holds all steps */
    main > div:last-child {
        height: auto !important;
        min-height: unset !important;
    }

    /* ---- Step headings ---- */
    #step-modules h2,
    #step-upload h2,
    #step-draw h2 {
        font-size: 1.4rem !important;
        margin-bottom: 6px !important;
    }

    #step-modules p,
    #step-upload p {
        font-size: 11px !important;
        margin-bottom: 20px !important;
    }

    /* ---- Traffic Dynamics card ---- */
    .traffic-dynamics-card {
        padding: 24px 20px !important;
        border-radius: 1.5rem !important;
    }

    /* ---- Dropzone — warm glow tap target ---- */
    #dropzone {
        padding: 2rem 1.25rem !important;
        min-height: 150px;
        border-radius: 1.25rem !important;
        border-color: #2a2a2a !important;
    }

    #dropzone span:first-of-type {
        font-size: 0.95rem !important;
    }

    /* ---- Canvas wrapper ---- */
    .relative.w-full.aspect-video {
        aspect-ratio: 4/3 !important;
        border-radius: 1rem !important;
        max-height: 40vh; /* Keeps continue button above fold */
    }

    /* ---- Proceed button — full width ---- */
    #btn-proceed {
        width: 100% !important;
        padding: 14px !important;
        font-size: 0.9rem !important;
        border-radius: 999px !important;
    }

    /* ---- Reset / Back buttons ---- */
    button[onclick="resetCanvas()"],
    button[onclick="showStep('modules')"] {
        font-size: 11px !important;
        padding: 10px 0 !important;
        min-height: 40px;
    }

    /* ---- Footer — padding only on mobile, layout handled by Tailwind ---- */
    footer {
        padding: 14px 20px 24px !important;
    }

    /* ---- Onboarding card ---- */
    .onboard-card {
        padding: 28px 20px !important;
        border-radius: 18px !important;
    }
    .onboard-card h3 {
        font-size: 1rem !important;
    }
    .onboard-card p {
        font-size: 11px !important;
    }
}


/* =============================================
   TOUCH: remove drag-related cursor on mobile
   ============================================= */
@media (hover: none) and (pointer: coarse) {
    #dropzone {
        cursor: pointer;
    }
    #dropzone:hover {
        /* no hover state on touch — only active */
        border-color: #2a2a2a !important;
        background-color: transparent !important;
    }
    #dropzone:active,
    #dropzone.dz-active {
        border-color: var(--cocoa-l) !important;
        background-color: #0d0d0d !important;
    }

    /* Bigger touch targets for all buttons */
    button {
        min-height: 44px;
    }

    /* Canvas cursor for drawing */
    #drawing-canvas {
        cursor: crosshair;
    }
}