:root {
    --color-bg: #FAF8F5;
    --color-bg-alt: #FFFFFF;
    --color-text: #1A1A1A;
    --color-text-light: #5A5A5A;
    --color-primary: #1A1A1A;
    --color-primary-hover: #333333;
    --color-accent: #09ffc7;
    --color-border: #E5E5E5;
    
    --font-heading: 'Playfair Display', serif;
    --font-body: 'Inter', sans-serif;
    
    --container-max: 1200px;
    --container-padding: 24px;
    
    --radius-sm: 8px;
    --radius-md: 16px;
    --radius-lg: 24px;
}

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: 90px;
}

body {
    font-family: var(--font-body);
    color: var(--color-text);
    background-color: var(--color-bg);
    line-height: 1.6;
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
}

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

ul {
    list-style: none;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 500;
    line-height: 1.2;
}

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

.text-center { text-align: center; }
.bg-light { background-color: var(--color-bg-alt); }

/* Buttons */
.btn-primary {
    display: inline-block;
    background-color: var(--color-primary);
    color: #fff;
    padding: 10px 24px;
    border-radius: 50px;
    font-weight: 500;
    transition: background-color 0.2s;
    border: none;
    cursor: pointer;
}
.btn-primary:hover { background-color: var(--color-primary-hover); }

.btn-accent {
    display: inline-block;
    background-color: var(--color-accent);
    color: var(--color-primary);
    padding: 10px 24px;
    border-radius: 50px;
    font-weight: 600;
    transition: all 0.2s;
    border: none;
    cursor: pointer;
}
.btn-accent:hover { 
    background-color: var(--color-primary);
    color: #fff;
}
.btn-white-hover:hover {
    background-color: #fff !important;
    color: var(--color-primary) !important;
}

.btn-large {
    padding: 14px 32px;
    font-size: 1.1rem;
}

.btn-dark {
    background-color: #000;
    color: #fff;
    border: none;
    padding: 12px 24px;
    border-radius: 50px;
    cursor: pointer;
    font-weight: 600;
    width: 100%;
    transition: background-color 0.3s ease, color 0.3s ease;
}

.btn-dark:hover {
    background-color: var(--color-accent);
    color: #000;
}

/* Header */
.site-header {
    position: sticky;
    top: 0;
    background-color: var(--color-bg);
    z-index: 100;
    padding: 20px 0;
}
.header-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.logo {
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 700;
    font-size: 1.5rem;
    letter-spacing: -0.5px;
}
.main-nav {
    display: none; /* Mobile first */
}
.header-actions {
    display: none; /* Mobile first */
}
.mobile-menu-toggle {
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
}

@media (min-width: 992px) {
    .main-nav { display: block; }
    .main-nav ul {
        display: flex;
        gap: 32px;
    }
    .main-nav a {
        font-size: 0.95rem;
        color: var(--color-text-light);
        display: flex;
        align-items: center;
        gap: 4px;
        padding: 6px 12px;
        border-radius: 4px;
        transition: all 0.2s;
    }
    .main-nav a:hover {
        color: #000;
        background-color: var(--color-accent);
    }
    
    .header-actions {
        display: flex;
        align-items: center;
        gap: 24px;
    }
    .btn-login {
        font-weight: 500;
        padding: 6px 12px;
        border-radius: 4px;
        transition: all 0.2s;
    }
    .btn-login:hover {
        color: #000;
        background-color: var(--color-accent);
    }
    .mobile-menu-toggle { display: none; }
}

/* Hero Section */
.hero {
    padding: 60px 0 80px;
}
.hero-inner {
    display: flex;
    flex-direction: column;
    gap: 40px;
}
.hero-title {
    font-family: var(--font-heading);
    font-size: 3.5rem;
    margin-bottom: 24px;
}
.highlight {
    display: inline-block;
    background-color: var(--color-accent);
    padding: 4px 16px;
    border-radius: 8px;
    color: var(--color-primary);
}
.hero-subtitle {
    font-size: 1.25rem;
    color: var(--color-text-light);
    margin-bottom: 32px;
    max-width: 500px;
}

.signup-form {
    display: flex;
    gap: 12px;
    margin-bottom: 24px;
    flex-direction: column;
}
.signup-form input {
    padding: 14px 20px;
    border-radius: 50px;
    border: 1px solid var(--color-border);
    font-size: 1rem;
    font-family: inherit;
    width: 100%;
    background: #fff;
}
@media (min-width: 768px) {
    .signup-form {
        flex-direction: row;
        max-width: 500px;
    }
}

.trust-markers {
    display: flex;
    flex-wrap: wrap;
    gap: 16px 24px;
    font-size: 0.9rem;
    color: var(--color-text-light);
}
.trust-markers li {
    display: flex;
    align-items: center;
    gap: 8px;
}

.hero-image {
    position: relative;
}
.mockup-window {
    background: #fff;
    border-radius: var(--radius-lg);
    box-shadow: 0 20px 40px rgba(0,0,0,0.08);
    overflow: hidden;
    position: relative;
}
.mockup-header {
    background: #F5F5F5;
    padding: 12px 16px;
    display: flex;
    gap: 6px;
}
.dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: #ddd;
}
.mockup-body {
    padding: 24px;
}
.mockup-table {
    font-size: 0.9rem;
}
.mockup-table .row {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    padding: 12px 0;
    border-bottom: 1px solid var(--color-border);
}
.mockup-table .header {
    font-weight: 600;
    color: var(--color-text-light);
    border-bottom: 2px solid var(--color-border);
}
.total-row {
    display: flex;
    justify-content: space-between;
    padding-top: 24px;
    font-weight: 600;
    font-size: 1.1rem;
}

@media (min-width: 992px) {
    .hero-inner {
        flex-direction: row;
        align-items: center;
    }
    .hero-content {
        flex: 1;
        padding-right: 40px;
    }
    .hero-image {
        flex: 1;
    }
    .hero-title {
        font-size: 4.5rem;
    }
}

/* Workflows Section */
.workflows {
    padding: 80px 0;
}
.section-title {
    font-size: 2.5rem;
    margin-bottom: 60px;
}
.workflow-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 40px;
}
.workflow-card {
    text-align: left;
}
.workflow-icon {
    font-size: 2.5rem;
    color: var(--color-accent);
    margin-bottom: 16px;
}
.workflow-card h3 {
    font-size: 1.5rem;
    margin-bottom: 12px;
}
.workflow-card p {
    color: var(--color-text-light);
    font-size: 0.95rem;
}
.app-item-info span {
    color: var(--color-text-light);
    font-size: 0.85rem;
}

.footer-integrations {
    background: var(--color-bg);
    padding: 24px;
    border-radius: var(--radius-lg);
    margin-bottom: 24px;
}

@media (min-width: 768px) {
    .workflow-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}
@media (min-width: 1024px) {
    .workflow-grid {
        grid-template-columns: repeat(5, 1fr);
    }
}

/* Deep Dive Section */
.deep-dive {
    padding: 100px 0;
}
.tabs-nav {
    display: flex;
    overflow-x: auto;
    gap: 16px;
    padding-bottom: 20px;
    margin-bottom: 40px;
    scrollbar-width: none;
}
.tabs-nav::-webkit-scrollbar { display: none; }
.tabs-nav li {
    white-space: nowrap;
    padding: 12px 24px;
    border-radius: 50px;
    background: #fff;
    cursor: pointer;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 8px;
    border: 1px solid var(--color-border);
    transition: all 0.2s;
}
.tabs-nav li.active {
    background: var(--color-text);
    color: #fff;
    border-color: var(--color-text);
}

.tab-inner {
    display: flex;
    flex-direction: column;
    gap: 40px;
}
.tab-text {
    flex: 1;
}
.tab-text h3 {
    font-size: 2rem;
    margin-bottom: 32px;
}
.feature-list li {
    margin-bottom: 24px;
}
.feature-list strong {
    display: block;
    font-size: 1.1rem;
    margin-bottom: 4px;
}
.feature-list p {
    color: var(--color-text-light);
}

.tab-image {
    flex: 1.5;
}
.mockup-window-large {
    background-color: var(--color-accent);
    border-radius: var(--radius-lg);
    padding: 24px;
    position: relative;
    overflow: hidden;
}
.app-mockup {
    background: #fff;
    border-radius: var(--radius-md);
    display: flex;
    height: 400px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
}
.app-sidebar {
    width: 200px;
    border-right: 1px solid var(--color-border);
    padding: 20px;
    display: flex;
    flex-direction: column;
}
.logo-small {
    font-weight: 700;
    margin-bottom: 40px;
    display: flex;
    align-items: center;
    gap: 8px;
}
.nav-items {
    display: flex;
    flex-direction: column;
    gap: 16px;
    flex: 1;
}
.nav-item {
    color: var(--color-text-light);
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 0.9rem;
    cursor: pointer;
}
.nav-item.active {
    color: var(--color-accent);
    font-weight: 600;
}
.app-main {
    flex: 1;
    display: flex;
    flex-direction: column;
}
.app-header {
    padding: 20px;
    border-bottom: 1px solid var(--color-border);
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.view-tabs {
    display: flex;
    background: var(--color-bg);
    border-radius: 8px;
    padding: 4px;
}
.view-tabs span {
    padding: 6px 16px;
    font-size: 0.85rem;
    border-radius: 6px;
    cursor: pointer;
}
.view-tabs span.active {
    background: #fff;
    box-shadow: 0 2px 4px rgba(0,0,0,0.05);
}
.tab-content {
    display: none;
    animation: fadeIn 0.3s ease-out forwards;
}
.tab-content.active {
    display: block;
}
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}
.app-content {
    flex: 1;
    padding: 20px;
    position: relative;
}
.calendar-grid {
    height: 100%;
    display: flex;
    flex-direction: column;
}
.cal-header {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    text-align: center;
    font-size: 0.85rem;
    color: var(--color-text-light);
    margin-bottom: 10px;
}
.cal-body {
    flex: 1;
    position: relative;
    border-top: 1px solid var(--color-border);
    background-image: linear-gradient(var(--color-border) 1px, transparent 1px), linear-gradient(90deg, var(--color-border) 1px, transparent 1px);
    background-size: 100% 20%, 20% 100%;
}
.block {
    position: absolute;
    width: 18%;
    background: var(--color-accent);
    color: #fff;
    font-size: 0.75rem;
    padding: 4px 8px;
    border-radius: 4px;
}

@media (min-width: 992px) {
    .tabs-nav { justify-content: center; }
    .tab-inner {
        flex-direction: row;
        align-items: center;
    }
}

/* Footer */
.site-footer {
    background: #fff;
    padding: 80px 0 40px;
    border-top: 1px solid var(--color-border);
}
.footer-top {
    display: grid;
    grid-template-columns: 1fr;
    gap: 40px;
    margin-bottom: 60px;
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 40px;
}
.link-column h4 {
    margin-bottom: 20px;
    font-size: 1.1rem;
}
.link-column ul {
    display: flex;
    flex-direction: column;
    gap: 12px;
}
.link-column a {
    color: var(--color-text-light);
    font-size: 0.95rem;
    padding: 2px 6px;
    border-radius: 4px;
    transition: all 0.2s;
    margin-left: -6px;
}
.link-column a:hover { 
    color: #000;
    background-color: var(--color-accent);
}

.footer-integrations {
    background: var(--color-bg);
    padding: 32px;
    border-radius: var(--radius-md);
}
.integration-icons {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-bottom: 24px;
}
.icon-circle {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
}
.footer-integrations h4 { margin-bottom: 8px; }
.footer-integrations p { color: var(--color-text-light); font-size: 0.9rem; }

.footer-bottom {
    display: flex;
    flex-direction: column;
    gap: 24px;
    border-top: 1px solid var(--color-border);
    padding-top: 32px;
}
.footer-legal ul {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    margin-bottom: 16px;
}
.footer-legal a {
    color: var(--color-text-light);
    font-size: 0.85rem;
    padding: 2px 6px;
    border-radius: 4px;
    transition: all 0.2s;
    margin-left: -6px;
}
.footer-legal a:hover {
    color: #000;
    background-color: var(--color-accent);
}
.footer-legal p {
    color: #999;
    font-size: 0.85rem;
}
.footer-social {
    display: flex;
    gap: 16px;
    font-size: 1.5rem;
    align-items: center;
}

@media (min-width: 768px) {
    .footer-links { grid-template-columns: repeat(3, 1fr); }
    .footer-bottom {
        flex-direction: row;
        justify-content: space-between;
        align-items: center;
    }
}
@media (min-width: 1024px) {
    .footer-top {
        grid-template-columns: 1fr 2fr 1fr;
    }
}

/* --- SUPER-PREMIUM TOAST NOTIFICATIONS UI --- */
#toast-container {
    position: fixed;
    bottom: 24px;
    right: 24px;
    z-index: 99999;
    display: flex;
    flex-direction: column;
    gap: 10px;
    pointer-events: none;
}
.toast-message {
    pointer-events: auto;
    min-width: 280px;
    max-width: 420px;
    background: #0f172a;
    color: #ffffff;
    padding: 14px 18px;
    border-radius: 12px;
    font-size: 0.92rem;
    font-weight: 600;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
    display: flex;
    align-items: center;
    gap: 12px;
    animation: toastIn 0.35s cubic-bezier(0.16, 1, 0.3, 1) forwards;
    border: 1px solid rgba(255, 255, 255, 0.1);
}
.toast-message.toast-success {
    border-left: 4px solid #10b981;
}
.toast-message.toast-error {
    border-left: 4px solid #ef4444;
}
.toast-message.toast-info {
    border-left: 4px solid #3b82f6;
}
@keyframes toastIn {
    from { opacity: 0; transform: translateY(20px) scale(0.95); }
    to { opacity: 1; transform: translateY(0) scale(1); }
}
@keyframes toastOut {
    from { opacity: 1; transform: translateY(0) scale(1); }
    to { opacity: 0; transform: translateY(10px) scale(0.95); }
}