/* ===========================
   esues.de — Shared Styles
   Design system inspired by Hey Buddee:
   iOS palette, Inter, gradient accents,
   rounded cards, soft shadows.
   =========================== */

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

:root {
    /* Clean white base with a refined blue accent.
       Backgrounds stay near-white, accents stay calm. */
    --primary-blue: #3D6BA0;
    --primary-blue-hover: #2D5689;
    --primary-blue-light: #5A8FCB;
    --success-green: #4A8A65;
    --warning-orange: #C29545;
    --error-red: #C25A5A;
    --pink: #B36A88;
    --accent-purple: #5A8FCB;

    /* Brand gradient stays inside the blue family for a cohesive feel */
    --gradient-brand: linear-gradient(135deg, #5A8FCB 0%, #2D5689 100%);
    --gradient-brand-soft: linear-gradient(135deg, #4A7AB3 0%, #2D5689 100%);
    --gradient-bg: linear-gradient(180deg, #F4F7FA 0%, #FFFFFF 100%);

    /* Neutral colors (cool, slightly blue-tinged) */
    --text-primary: #1A2332;
    --text-secondary: #5A6B7E;
    --text-tertiary: #8A98A8;
    --bg-primary: #FFFFFF;
    --bg-secondary: #F4F7FA;
    --bg-tertiary: #FAFBFD;
    --surface-card: #FFFFFF;
    --border-color: #D1DAE5;
    --border-light: #E4EAF2;

    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;

    /* Spacing scale */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 6rem;

    /* Border radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-xl: 30px;

    /* Shadows */
    --shadow-sm: 0 2px 8px rgba(20, 35, 60, 0.05);
    --shadow-md: 0 4px 16px rgba(20, 35, 60, 0.07);
    --shadow-lg: 0 8px 32px rgba(20, 35, 60, 0.10);
    --shadow-glow: 0 8px 30px rgba(61, 107, 160, 0.18);
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    color: var(--text-primary);
    background-color: var(--bg-primary);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

img {
    max-width: 100%;
    height: auto;
    display: block;
}

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

/* ===========================
   Typography
   =========================== */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.2;
    color: var(--text-primary);
    letter-spacing: -0.02em;
}

h1 { font-size: clamp(2.5rem, 5vw, 4rem); }
h2 { font-size: clamp(2rem, 4vw, 3rem); }
h3 { font-size: clamp(1.4rem, 2.5vw, 1.75rem); }
h4 { font-size: 1.125rem; }

p {
    font-size: 1.0625rem;
    line-height: 1.7;
    color: var(--text-secondary);
}

.eyebrow {
    text-transform: uppercase;
    letter-spacing: 0.12em;
    font-size: 0.8125rem;
    font-weight: 600;
    color: var(--primary-blue);
    margin-bottom: var(--spacing-sm);
}

.gradient-text {
    background: var(--gradient-brand);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ===========================
   Buttons
   =========================== */
.btn-primary,
.btn-secondary,
.btn-text {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.875rem 2rem;
    border-radius: var(--radius-lg);
    font-size: 1rem;
    font-weight: 500;
    text-align: center;
    transition: all 0.25s ease;
    cursor: pointer;
    border: none;
    font-family: inherit;
}

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

.btn-primary:hover {
    background: var(--primary-blue-hover);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-secondary {
    background: transparent;
    color: var(--primary-blue);
    border: 2px solid var(--primary-blue);
}

.btn-secondary:hover {
    background: var(--primary-blue);
    color: white;
    transform: translateY(-2px);
}

.btn-large {
    padding: 1.125rem 2.5rem;
    font-size: 1.0625rem;
}

.btn-text {
    background: transparent;
    color: var(--primary-blue);
    padding: 0.5rem 0;
    font-weight: 500;
}

.btn-text:hover {
    text-decoration: underline;
}

.btn-primary-nav {
    background: var(--primary-blue);
    color: white !important;
    padding: 0.625rem 1.25rem;
    border-radius: var(--radius-md);
    font-weight: 500;
    transition: all 0.25s ease;
}

.btn-primary-nav:hover {
    background: var(--primary-blue-hover);
}

/* ===========================
   Navigation
   =========================== */
.navbar {
    position: sticky;
    top: 0;
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-light);
    z-index: 1000;
    padding: 0.875rem 0;
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: relative;
}

.logo {
    display: flex;
    align-items: center;
    font-size: 1.25rem;
    font-weight: 700;
    letter-spacing: -0.02em;
}

.logo a {
    display: flex;
    align-items: center;
    gap: 0.625rem;
    color: var(--text-primary);
}

.logo-icon {
    width: 36px;
    height: 36px;
    border-radius: 9px;
    object-fit: cover;
}

.logo-text {
    font-weight: 700;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 1.75rem;
    align-items: center;
}

.nav-menu a {
    color: var(--text-primary);
    font-weight: 500;
    font-size: 0.9375rem;
    transition: color 0.25s ease;
}

.nav-menu a:hover,
.nav-menu a.active {
    color: var(--primary-blue);
}

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 4px;
    background: none;
    border: none;
    padding: 0.5rem;
}

.hamburger span {
    width: 24px;
    height: 2.5px;
    background: var(--text-primary);
    border-radius: 3px;
    transition: all 0.3s ease;
}

/* ===========================
   Hero
   =========================== */
.hero {
    padding: var(--spacing-xl) 0 var(--spacing-lg);
    background: var(--gradient-bg);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: "";
    position: absolute;
    top: -200px;
    right: -200px;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(90, 143, 203, 0.12), transparent 70%);
    pointer-events: none;
}

.hero::after {
    content: "";
    position: absolute;
    bottom: -200px;
    left: -200px;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(61, 107, 160, 0.10), transparent 70%);
    pointer-events: none;
}

.hero-container {
    position: relative;
    z-index: 1;
    text-align: center;
    max-width: 820px;
    margin: 0 auto;
}

.hero-title {
    margin-bottom: var(--spacing-sm);
}

.hero-subtitle {
    font-size: clamp(1.125rem, 2vw, 1.375rem);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
    max-width: 640px;
    margin-left: auto;
    margin-right: auto;
}

.hero-buttons {
    display: flex;
    gap: var(--spacing-sm);
    justify-content: center;
    flex-wrap: wrap;
}

.hero-meta {
    margin-top: var(--spacing-md);
    font-size: 0.9375rem;
    color: var(--text-tertiary);
}

.page-hero {
    padding: var(--spacing-lg) 0 var(--spacing-md);
    background: var(--gradient-bg);
    text-align: center;
}

.page-hero h1 {
    margin-bottom: var(--spacing-sm);
}

.page-hero p {
    max-width: 640px;
    margin: 0 auto;
    font-size: 1.125rem;
}

.portrait {
    width: 132px;
    height: 132px;
    border-radius: 50%;
    object-fit: cover;
    margin: 0 auto var(--spacing-md);
    box-shadow: var(--shadow-md);
    background: var(--surface-card);
    display: block;
}

/* ===========================
   Sections
   =========================== */
.section {
    padding: var(--spacing-xl) 0;
}

.section-alt {
    background: var(--bg-secondary);
}

.section-header {
    text-align: center;
    max-width: 720px;
    margin: 0 auto var(--spacing-lg);
}

.section-header h2 {
    margin-bottom: var(--spacing-sm);
}

.section-subtitle {
    font-size: 1.125rem;
    color: var(--text-secondary);
}

/* ===========================
   App Cards (the headline component)
   =========================== */
.apps-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--spacing-md);
}

.app-card {
    background: var(--surface-card);
    border-radius: var(--radius-xl);
    padding: var(--spacing-md);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-light);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    position: relative;
}

.app-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
}

.app-card-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: var(--spacing-sm);
}

.app-card-icon {
    width: 72px;
    height: 72px;
    border-radius: 18px;
    object-fit: cover;
    box-shadow: var(--shadow-sm);
    flex-shrink: 0;
}

.app-card-title-block h3 {
    font-size: 1.375rem;
    margin-bottom: 0.125rem;
}

.app-card-platform {
    font-size: 0.8125rem;
    color: var(--text-tertiary);
    font-weight: 500;
}

.app-card-tagline {
    font-size: 1rem;
    font-weight: 500;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.app-card-description {
    font-size: 0.9375rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-sm);
    flex-grow: 1;
}

.app-card-features {
    list-style: none;
    margin-bottom: var(--spacing-sm);
}

.app-card-features li {
    font-size: 0.875rem;
    color: var(--text-secondary);
    padding: 0.25rem 0;
    padding-left: 1.5rem;
    position: relative;
}

.app-card-features li::before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--success-green);
    font-weight: 700;
}

.app-card-footer {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    align-items: center;
    margin-top: auto;
    padding-top: var(--spacing-sm);
    border-top: 1px solid var(--border-light);
}

.app-card-link {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.5rem 0.875rem;
    border-radius: 999px;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--primary-blue);
    background: rgba(61, 107, 160, 0.10);
    transition: all 0.25s ease;
}

.app-card-link:hover {
    background: var(--primary-blue);
    color: white;
}

.app-card-link.link-muted {
    color: var(--text-tertiary);
    background: var(--bg-secondary);
    cursor: default;
}

.app-card-link.link-muted:hover {
    background: var(--bg-secondary);
    color: var(--text-tertiary);
}

.app-status {
    position: absolute;
    top: 1rem;
    right: 1rem;
    font-size: 0.75rem;
    font-weight: 600;
    padding: 0.25rem 0.625rem;
    border-radius: 999px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.status-live {
    background: rgba(74, 138, 101, 0.16);
    color: #2f6a47;
}

.status-soon {
    background: rgba(194, 149, 69, 0.18);
    color: #7a5a14;
}

/* ===========================
   About Preview
   =========================== */
.about-preview {
    background: var(--bg-secondary);
}

.about-preview-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
    align-items: center;
}

.about-preview-content h2 {
    margin-bottom: var(--spacing-sm);
}

.about-preview-content p {
    margin-bottom: var(--spacing-sm);
    font-size: 1.0625rem;
}

.values-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: var(--spacing-sm);
    margin-top: var(--spacing-md);
}

.value-card {
    background: var(--surface-card);
    padding: var(--spacing-sm);
    border-radius: var(--radius-md);
    border: 1px solid var(--border-light);
}

.value-card .value-icon {
    font-size: 1.75rem;
    margin-bottom: 0.5rem;
}

.value-card h4 {
    font-size: 1rem;
    margin-bottom: 0.25rem;
}

.value-card p {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

/* About page specific */
.about-bio {
    max-width: 760px;
    margin: 0 auto;
}

.about-bio p {
    font-size: 1.125rem;
    margin-bottom: var(--spacing-sm);
}

.about-bio h2 {
    margin-top: var(--spacing-md);
    margin-bottom: var(--spacing-sm);
}

.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-sm);
    margin-top: var(--spacing-md);
}

.skill-tag {
    background: var(--surface-card);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-md);
    padding: 1rem 1.25rem;
    display: flex;
    align-items: center;
    gap: 0.625rem;
    font-weight: 500;
    color: var(--text-primary);
}

.skill-tag .skill-icon {
    font-size: 1.5rem;
}

/* ===========================
   CTA strip
   =========================== */
.cta-strip {
    padding: var(--spacing-xl) 0;
    background: var(--gradient-brand-soft);
    color: white;
    text-align: center;
}

.cta-strip h2 {
    color: white;
    margin-bottom: var(--spacing-sm);
}

.cta-strip p {
    color: rgba(255, 255, 255, 0.9);
    font-size: 1.125rem;
    margin-bottom: var(--spacing-md);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.cta-strip .btn-primary {
    background: var(--surface-card);
    color: var(--primary-blue);
}

.cta-strip .btn-primary:hover {
    background: var(--bg-secondary);
}

.cta-strip .btn-secondary {
    background: transparent;
    color: white;
    border-color: white;
}

.cta-strip .btn-secondary:hover {
    background: var(--surface-card);
    color: var(--primary-blue);
}

/* ===========================
   Footer
   =========================== */
.site-footer {
    background: #1A2332;
    color: rgba(255, 255, 255, 0.78);
    padding: var(--spacing-lg) 0 var(--spacing-md);
}

.footer-main {
    display: grid;
    grid-template-columns: 1.5fr 2fr;
    gap: var(--spacing-lg);
    padding-bottom: var(--spacing-md);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    margin-bottom: var(--spacing-md);
}

.footer-brand .footer-logo {
    display: flex;
    align-items: center;
    gap: 0.625rem;
    font-size: 1.25rem;
    font-weight: 700;
    color: white;
    margin-bottom: var(--spacing-sm);
}

.footer-brand p {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.9375rem;
    margin-bottom: 0.5rem;
    max-width: 320px;
}

.footer-copy {
    margin-top: var(--spacing-sm);
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.5);
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-md);
}

.footer-column h4 {
    color: white;
    margin-bottom: var(--spacing-sm);
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

.footer-column ul {
    list-style: none;
}

.footer-column li {
    margin-bottom: 0.5rem;
}

.footer-column a {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.9375rem;
    transition: color 0.25s ease;
}

.footer-column a:hover {
    color: white;
}

.footer-bottom {
    text-align: center;
    font-size: 0.8125rem;
    color: rgba(255, 255, 255, 0.4);
}

/* ===========================
   Legal pages
   =========================== */
.legal {
    max-width: 760px;
    margin: 0 auto;
    padding: var(--spacing-md) 0;
}

.legal h2 {
    font-size: 1.375rem;
    margin-top: var(--spacing-md);
    margin-bottom: var(--spacing-sm);
}

.legal h3 {
    font-size: 1.125rem;
    margin-top: var(--spacing-sm);
    margin-bottom: 0.5rem;
}

.legal p {
    margin-bottom: var(--spacing-sm);
    font-size: 1rem;
}

.legal a {
    color: var(--primary-blue);
}

.legal a:hover {
    text-decoration: underline;
}

.legal .placeholder {
    background: rgba(194, 149, 69, 0.18);
    color: #7a5a14;
    padding: 0.125rem 0.375rem;
    border-radius: 4px;
    font-style: italic;
    font-weight: 500;
}

/* ===========================
   Responsive
   =========================== */
@media (max-width: 968px) {
    .about-preview-grid {
        grid-template-columns: 1fr;
    }
    .footer-main {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    :root {
        --spacing-lg: 3rem;
        --spacing-xl: 4rem;
    }

    .nav-menu {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: rgba(255, 255, 255, 0.98);
        backdrop-filter: blur(20px);
        -webkit-backdrop-filter: blur(20px);
        flex-direction: column;
        padding: 1rem var(--spacing-md);
        gap: 1rem;
        border-bottom: 1px solid var(--border-light);
    }

    .nav-menu.open {
        display: flex;
    }

    .hamburger {
        display: flex;
    }

    .hero-buttons {
        flex-direction: column;
        align-items: stretch;
    }

    .hero-buttons .btn-primary,
    .hero-buttons .btn-secondary {
        width: 100%;
    }

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

@media (max-width: 480px) {
    .container {
        padding: 0 var(--spacing-sm);
    }

    .apps-grid {
        grid-template-columns: 1fr;
    }

    .footer-links {
        grid-template-columns: 1fr;
    }

    .app-card-header {
        flex-direction: column;
        align-items: flex-start;
    }

    .app-status {
        position: static;
        margin-bottom: 0.5rem;
        align-self: flex-start;
    }
}

/* ===========================
   Animations
   =========================== */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.hero-container,
.section-header,
.app-card {
    animation: fadeInUp 0.7s ease-out backwards;
}

.app-card:nth-child(1) { animation-delay: 0.05s; }
.app-card:nth-child(2) { animation-delay: 0.15s; }
.app-card:nth-child(3) { animation-delay: 0.25s; }

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.001s !important;
        transition-duration: 0.001s !important;
    }
}