/* ============================================
   LANDING PAGE STYLES
   Interactive welcome screen with particles
   ============================================ */

/* Welcome screen overrides */
#screen-welcome {
    position: relative;
    overflow: hidden;
    background: #000;
    height: 100vh;
    height: 100dvh;
    max-height: 100vh;
    max-height: 100dvh;
}

#screen-welcome.active {
    display: block;
}

/* Shiny button gradient animation */
@property --gradient-angle {
    syntax: "<angle>";
    initial-value: 0deg;
    inherits: false;
}

/* Interactive Background Container */
.landing-bg {
    position: absolute;
    inset: 0;
    pointer-events: none;
    z-index: 1;
    overflow: hidden;
}

/* Grid pattern overlay */
.landing-grid {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
    background-size: 60px 60px;
}

/* Mouse-following gradient orbs */
.landing-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.5;
    transition: transform 0.3s ease-out;
}

.landing-orb--purple {
    width: 1000px;
    height: 1000px;
    background: radial-gradient(circle, var(--purple-400) 0%, rgba(168, 85, 247, 0.2) 30%, transparent 60%);
    opacity: 0.35;
}

.landing-orb--blue {
    width: 900px;
    height: 900px;
    background: radial-gradient(circle, var(--blue-400) 0%, rgba(59, 130, 246, 0.2) 30%, transparent 60%);
    opacity: 0.4;
}

.landing-orb--teal {
    width: 800px;
    height: 800px;
    background: radial-gradient(circle, var(--teal-400) 0%, rgba(20, 184, 166, 0.2) 30%, transparent 60%);
    opacity: 0.25;
}

/* Particle canvas container */
.landing-particles {
    position: absolute;
    inset: 0;
}

.landing-particles canvas {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
}

/* Cursor glow effect */
.landing-cursor-glow {
    position: fixed;
    width: 250px;
    height: 250px;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.06) 0%, rgba(255, 255, 255, 0.02) 40%, transparent 70%);
    border-radius: 50%;
    pointer-events: none;
    transform: translate(-50%, -50%);
    z-index: 2;
    display: none;
}

.landing-cursor-glow.active {
    display: block;
}

/* Landing content container */
.landing-content {
    position: relative;
    z-index: 3;
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 2rem;
    padding-bottom: 8vh; /* Push content up from center */
    text-align: center;
    box-sizing: border-box;
}

.landing-inner {
    max-width: 1200px;
    width: 90%;
}

/* Badge */
.landing-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 100px;
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
    backdrop-filter: blur(10px);
}

.landing-badge-dot {
    width: 8px;
    height: 8px;
    background: var(--teal-400);
    border-radius: 50%;
    animation: landing-pulse 2s infinite;
}

@keyframes landing-pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.5; transform: scale(1.2); }
}

/* Headline */
.landing-headline {
    font-family: 'Montserrat', sans-serif;
    font-size: clamp(3rem, 10vw, 6rem);
    font-weight: 600;
    line-height: 1.15;
    letter-spacing: -0.03em;
    margin-bottom: 1.5rem;
}

/* Animated gradient text */
.landing-gradient-text {
    background: linear-gradient(
        135deg,
        #ffffff 0%,
        #e0fdfa 20%,
        #99f6e4 40%,
        #c4b5fd 60%,
        #e9d5ff 80%,
        #ffffff 100%
    );
    background-size: 200% 200%;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    display: block;
    filter: drop-shadow(0 0 30px rgba(255, 255, 255, 0.3)) drop-shadow(0 0 60px rgba(192, 132, 252, 0.25));
    animation: landing-gradient-shift 10s ease-in-out infinite;
}

@keyframes landing-gradient-shift {
    0%, 100% {
        background-position: 0% 50%;
    }
    50% {
        background-position: 100% 50%;
    }
}

/* Byline */
.landing-byline {
    display: block;
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    font-size: clamp(1.2rem, 3vw, 1.8rem);
    font-weight: 400;
    color: var(--text-secondary);
    margin-top: 0.5rem;
    letter-spacing: 0;
}

.landing-byline-by {
    font-size: 0.7em;
    color: var(--text-muted);
}

.landing-anyra {
    font-family: Helvetica, Arial, sans-serif;
    font-weight: 400;
    color: #ffffff;
    letter-spacing: -0.01em;
}

/* Subheadline */
.landing-subheadline {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    font-size: clamp(1.1rem, 2vw, 1.4rem);
    font-weight: 400;
    color: var(--text-secondary);
    max-width: 620px;
    margin: 0 auto 3rem;
    line-height: 1.7;
    letter-spacing: 0;
}

/* CTA group */
.landing-cta-group {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1.5rem;
}

/* Shiny animated border button */
.btn--shiny {
    position: relative;
    overflow: hidden;
    border-radius: 9999px;
    padding: 1.1rem 2.25rem;
    font-size: 1.1rem;
    font-weight: 500;
    color: #ffffff;
    background: linear-gradient(#000000, #000000) padding-box,
        conic-gradient(
            from var(--gradient-angle),
            transparent 0%,
            var(--teal-500) 10%,
            var(--teal-400) 20%,
            var(--purple-400) 30%,
            var(--teal-500) 40%,
            transparent 50%
        ) border-box;
    border: 2px solid transparent;
    box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.1);
    cursor: pointer;
    isolation: isolate;
    animation: landing-border-spin 3s linear infinite;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 10px;
}

@keyframes landing-border-spin {
    to {
        --gradient-angle: 360deg;
    }
}

.btn--shiny:hover {
    box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.15),
                0 0 30px rgba(20, 184, 166, 0.4);
}

.btn--shiny:active {
    transform: translateY(1px);
}

.btn--shiny::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at 50% 120%, rgba(20, 184, 166, 0.15), transparent 60%);
    pointer-events: none;
}

.btn--shiny span,
.btn--shiny i,
.btn--shiny svg {
    position: relative;
    z-index: 2;
}

/* Animation classes */
.landing-animate-in {
    animation: landing-fadeSlideIn 0.8s ease forwards;
    opacity: 0;
}

@keyframes landing-fadeSlideIn {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ============================================
   APP-WIDE AMBIENT BACKGROUNDS
   Subtle versions for vibe-check, hub, etc.
   ============================================ */

/* Shared ambient background for app screens */
.screen-ambient-bg {
    position: absolute;
    inset: 0;
    pointer-events: none;
    z-index: 0;
    overflow: hidden;
}

.screen-ambient-bg .ambient-grid {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(255,255,255,0.015) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,0.015) 1px, transparent 1px);
    background-size: 60px 60px;
    opacity: 0.5;
}

/* Vibe check - less grid, more sparkles */
#screen-vibe-check .ambient-grid {
    opacity: 0.3;
}

/* Ambient sparkles container */
.ambient-sparkles {
    position: absolute;
    inset: 0;
    overflow: hidden;
}

.ambient-sparkles canvas {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
}

.screen-ambient-bg .ambient-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(100px);
    transition: transform 0.5s ease-out;
}

.screen-ambient-bg .ambient-orb--purple {
    width: 800px;
    height: 800px;
    background: radial-gradient(circle, var(--purple-400) 0%, rgba(168, 85, 247, 0.2) 30%, transparent 60%);
    opacity: 0.25;
    right: -20%;
    top: 20%;
}

.screen-ambient-bg .ambient-orb--teal {
    width: 700px;
    height: 700px;
    background: radial-gradient(circle, var(--teal-400) 0%, rgba(20, 184, 166, 0.2) 30%, transparent 60%);
    opacity: 0.2;
    left: -15%;
    bottom: 10%;
}

.screen-ambient-bg .ambient-orb--teal-top {
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, var(--teal-400) 0%, rgba(20, 184, 166, 0.2) 30%, transparent 60%);
    opacity: 0.18;
    left: -10%;
    top: -5%;
}

/* Vibe Check screen styling */
#screen-vibe-check {
    position: relative;
    background: #000;
    overflow: auto;
}

#screen-vibe-check .landing-bg {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    pointer-events: none;
    z-index: 0;
}

#screen-vibe-check .screen-content {
    position: relative;
    z-index: 1;
}

/* Vibe-check specific orb positioning - push orbs to corners and dim */
#vibe-orb-purple {
    left: -40%;
    bottom: -30%;
    top: auto;
    opacity: 0.2;
}

#vibe-orb-blue {
    display: none;
}

#vibe-orb-teal {
    right: -35%;
    bottom: -25%;
    left: auto;
    top: auto;
    opacity: 0.15;
}

/* Hub screen styling */
#screen-hub {
    position: relative;
    background: #000;
    overflow: auto;
}

#screen-hub .landing-bg {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    pointer-events: none;
    z-index: 0;
}

#screen-hub .screen-content {
    position: relative;
    z-index: 1;
}

/* Hub-specific orb positioning - push blue orb to the right */
#hub-orb-purple {
    top: -30%;
    left: -20%;
    opacity: 0.2;
}

#hub-orb-blue {
    top: 20%;
    right: -35%;
    left: auto;
    opacity: 0.25;
}

#hub-orb-teal {
    bottom: -20%;
    left: -15%;
}

/* Module screen styling */
#screen-module {
    position: relative;
}

/* ============================================
   SHINY SELECTED STATE
   For cards, buttons when selected/active
   ============================================ */

@property --card-gradient-angle {
    syntax: "<angle>";
    initial-value: 0deg;
    inherits: false;
}

.shiny-selected {
    position: relative;
    overflow: hidden;
    background: linear-gradient(#0a0a0a, #0a0a0a) padding-box,
        conic-gradient(
            from var(--card-gradient-angle),
            transparent 0%,
            var(--teal-500) 5%,
            var(--teal-400) 15%,
            var(--purple-400) 25%,
            var(--teal-500) 35%,
            transparent 45%
        ) border-box !important;
    border: 2px solid transparent !important;
    box-shadow:
        inset 0 0 0 1px rgba(255, 255, 255, 0.1),
        0 0 20px rgba(20, 184, 166, 0.3) !important;
    animation: card-border-spin 3s linear infinite;
}

@keyframes card-border-spin {
    to {
        --card-gradient-angle: 360deg;
    }
}

.shiny-selected::before {
    content: '';
    pointer-events: none;
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at 50% 120%, rgba(20, 184, 166, 0.15), transparent 60%);
    z-index: 0;
}

/* Dot pattern overlay for selected cards */
.shiny-selected::after {
    content: '';
    pointer-events: none;
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    z-index: 0;
    width: calc(100% - 6px);
    height: calc(100% - 6px);
    background: radial-gradient(circle at 2px 2px, rgba(255, 255, 255, 0.3) 0.5px, transparent 0) padding-box;
    background-size: 4px 4px;
    background-repeat: space;
    mask-image: conic-gradient(
        from calc(var(--card-gradient-angle) + 45deg),
        black,
        transparent 10% 90%,
        black
    );
    border-radius: inherit;
    opacity: 0.4;
}

/* Shiny hover state for cards */
.shiny-hover {
    position: relative;
    overflow: hidden;
    transition: all 0.3s ease;
}

.shiny-hover:hover {
    background: linear-gradient(#0a0a0a, #0a0a0a) padding-box,
        conic-gradient(
            from var(--card-gradient-angle),
            transparent 0%,
            var(--teal-500) 5%,
            var(--teal-400) 15%,
            var(--purple-400) 25%,
            var(--teal-500) 35%,
            transparent 45%
        ) border-box !important;
    border: 2px solid transparent !important;
    box-shadow:
        inset 0 0 0 1px rgba(255, 255, 255, 0.1),
        0 0 15px rgba(20, 184, 166, 0.2) !important;
    animation: card-border-spin 3s linear infinite;
}

.shiny-hover:hover::before {
    content: '';
    pointer-events: none;
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at 50% 120%, rgba(20, 184, 166, 0.1), transparent 60%);
    z-index: 0;
}

/* Progress bar shiny effect */
.progress-shiny {
    position: relative;
    overflow: hidden;
    background: linear-gradient(90deg, var(--teal-500), var(--teal-400), var(--purple-400));
    background-size: 200% 100%;
    animation: progress-shimmer 2s ease-in-out infinite;
}

@keyframes progress-shimmer {
    0%, 100% {
        background-position: 0% 50%;
    }
    50% {
        background-position: 100% 50%;
    }
}

/* ============================================
   MOBILE RESPONSIVENESS
   ============================================ */

@media (max-width: 768px) {
    .landing-content {
        padding: 1.5rem;
        padding-bottom: 12vh; /* Push content up more on mobile */
    }

    .landing-inner {
        width: 95%;
    }

    .landing-badge {
        padding: 6px 12px;
        font-size: 0.75rem;
        margin-bottom: 1.5rem;
    }

    .landing-headline {
        font-size: clamp(2.25rem, 12vw, 3.5rem);
        margin-bottom: 1rem;
    }

    .landing-subheadline {
        font-size: 1rem;
        margin-bottom: 2rem;
        line-height: 1.6;
        padding: 0 0.5rem;
    }

    .landing-cta-group {
        gap: 0.875rem;
        width: 100%;
    }

    .btn--shiny {
        padding: 1rem 1.75rem;
        font-size: 1rem;
        width: 100%;
        max-width: 300px;
        justify-content: center;
    }

    .btn--google {
        width: 100%;
        max-width: 300px;
        justify-content: center;
    }

    /* Reduce orb sizes on mobile */
    .landing-orb--purple {
        width: 600px;
        height: 600px;
        opacity: 0.25;
    }

    .landing-orb--blue {
        width: 500px;
        height: 500px;
        opacity: 0.3;
    }

    .landing-orb--teal {
        width: 450px;
        height: 450px;
        opacity: 0.2;
    }

    /* Reduce ambient orbs on mobile */
    .screen-ambient-bg .ambient-orb--purple {
        width: 500px;
        height: 500px;
        opacity: 0.1;
    }

    .screen-ambient-bg .ambient-orb--teal {
        width: 400px;
        height: 400px;
        opacity: 0.08;
    }

    /* Hide cursor glow on touch devices */
    .landing-cursor-glow {
        display: none !important;
    }
}

@media (max-width: 480px) {
    .landing-headline {
        font-size: clamp(2rem, 14vw, 2.75rem);
    }

    .landing-byline {
        font-size: clamp(1rem, 4vw, 1.25rem);
    }

    .landing-subheadline {
        font-size: 0.9rem;
    }

    .btn--shiny,
    .btn--google {
        max-width: 280px;
        padding: 0.875rem 1.5rem;
        font-size: 0.95rem;
    }

    /* Further reduce orbs on small screens */
    .landing-orb--purple {
        width: 400px;
        height: 400px;
    }

    .landing-orb--blue {
        width: 350px;
        height: 350px;
    }

    .landing-orb--teal {
        width: 300px;
        height: 300px;
    }
}

/* Performance: Hide expensive orbs on small mobile screens */
@media (max-width: 480px) {
    .landing-orb {
        display: none !important;
    }

    .landing-grid {
        opacity: 0.3;
    }

    .bg-ambient {
        display: none;
    }
}

/* Landscape phone orientation */
@media (max-height: 500px) and (orientation: landscape) {
    .landing-content {
        padding: 1rem;
        justify-content: flex-start;
        padding-top: 2rem;
    }

    .landing-badge {
        margin-bottom: 1rem;
    }

    .landing-headline {
        font-size: 2rem;
        margin-bottom: 0.75rem;
    }

    .landing-subheadline {
        margin-bottom: 1.5rem;
    }
}
/* ============================================
   LIGHT MODE LANDING OVERRIDES
   ============================================ */

/* Welcome Screen Background */
body.light-mode #screen-welcome {
    background: #ffffff;
}

/* Grid Pattern - Dark lines for light mode */
body.light-mode .landing-grid {
    background-image:
        linear-gradient(rgba(0,0,0,0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0,0,0,0.03) 1px, transparent 1px);
}

/* Gradient Text - Darker, saturated colors for visibility */
body.light-mode .landing-gradient-text {
    background: linear-gradient(
        135deg,
        #0f172a 0%,
        #0d9488 20%,
        #7c3aed 50%,
        #db2777 80%,
        #0f172a 100%
    );
    background-size: 200% 200%;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    filter: drop-shadow(0 0 30px rgba(124, 58, 237, 0.1));
}

/* Badge */
body.light-mode .landing-badge {
    background: rgba(0, 0, 0, 0.03);
    border-color: rgba(0, 0, 0, 0.08);
    color: var(--text-primary);
}

/* Byline and Subheadline */
body.light-mode .landing-gray-text,
body.light-mode .landing-byline,
body.light-mode .landing-subheadline {
    color: var(--text-secondary);
}

body.light-mode .landing-anyra {
    color: #0f172a;
}

/* Orbs - Darker/Stronger for light mode visibility */
body.light-mode .landing-orb {
    mix-blend-mode: multiply;
    filter: blur(90px);
}

body.light-mode .landing-orb--purple {
    background: radial-gradient(circle, #e9d5ff 0%, rgba(168, 85, 247, 0.3) 40%, transparent 70%);
    opacity: 0.6;
}

body.light-mode .landing-orb--blue {
    background: radial-gradient(circle, #bfdbfe 0%, rgba(59, 130, 246, 0.3) 40%, transparent 70%);
    opacity: 0.6;
}

body.light-mode .landing-orb--teal {
    background: radial-gradient(circle, #99f6e4 0%, rgba(20, 184, 166, 0.3) 40%, transparent 70%);
    opacity: 0.5;
}

/* Shiny Button - Light Mode Variant */
body.light-mode .btn--shiny {
    background: linear-gradient(#ffffff, #ffffff) padding-box,
        conic-gradient(
            from var(--gradient-angle),
            transparent 0%,
            var(--teal-500) 10%,
            var(--purple-500) 30%,
            var(--teal-500) 50%,
            transparent 60%
        ) border-box;
    color: #0f172a;
    box-shadow: 0 4px 20px rgba(0,0,0,0.05);
}

body.light-mode .btn--shiny:hover {
    box-shadow: 0 8px 30px rgba(20, 184, 166, 0.15);
}

body.light-mode .btn--shiny::before {
    background: radial-gradient(circle at 50% 120%, rgba(20, 184, 166, 0.08), transparent 60%);
}

/* Cursor Glow - Dark */
body.light-mode .landing-cursor-glow {
    background: radial-gradient(circle, rgba(0, 0, 0, 0.03) 0%, rgba(0, 0, 0, 0.01) 40%, transparent 70%);
}